The history of the young energetic artist Mabel Pines from Gravity Falls
Early Life[]
Born on August 31, 1999, Mabel Pines was born 1-minute before her twin brother Dipper in Piedmont, California, and according to herself, the first word she ever spoke was "unicorn" and growing up, she would find herself with a natural talent of art and became obsessed with anything girly from dolls to romance movies and have a happy & cheerful personality.
Despite having a polar-opposite personality to Dipper's book-smarts and being an introvert, he & Mabel were each other's best friend growing up & did a lot of things growing up together, from making each other smile at hard times to spending the holidays (especially Halloween and Christmas) together with the rest of their family.
Spending summer away from home[]

Mabel and her brother about to go to Gravity Falls.
In the year 2012 Mabel, now 12 years old, was initially planning alongside Dipper to spend their summer vacation locked in their room, watching TV, playing video games and talking on the phone, but that immediately changed when their parents decided they need some fresh air and out-door living, so they decided to send them to a small, sleepy town hidden in Oregon called Gravity Falls, where they would spend their summer living with their paternal great-uncle, or "Grunkle" Stan, a con-man who's the owner of a tourist-trap called "The Mystery Shack".

Mabel and her brother working in the Shack.
Staying in the town made the twins greatly uncomfortable as not only does there uncle make them work in the Mystery Shack during their stay with him, but they quickly find most of the townsfolk that live in Gravity Falls to be absolute fools who easily believe even the lamest scam Stan would place as part of his morning tours. But for Mabel & Dipper, living with Stan wasn't all too bad because while he maybe a great charlatan, he was an all-around great guy, and they made quick friends with the other employees like the dumb-but-fun Handyman who greatly admires Stan named Soos, and the cool cashier teenaged girl named Wendy, who Dipper would also develop a crush on.
On a more personal level, being away from home for the summer made Mabel quickly decide it was her "chance to have an epic summer romance," and made pretty good on this initial promise by basically flirting with every guy she meets in the town, which pretty much goes out as her brother expected. But while she was doing pretty well in Gravity Falls, her brother on the other hand constantly felt something was off about how things in town played out, & while she remained unbothered by the latter's conspiracy theories, little did Mabel know was that one day she would realize that he was right, and that her & her family's lives would change forever.
Meeting her first "boyfriend"[]

Mabel stocking a boy.
One fateful day, after another failed flirting attempt and Dipper heads into the woods to nail down signs promoting the Mystery Shack, Mabel wanders into the town cemetery where she would bump into a messed-up "teenager" who claims his name is "Norman", and she would be immediately smitten by him. Despite having obvious signs of not being human, Mabel pretty much ignored the signs and raced to tell her family about it, but when she sees Dipper isn't back yet, she too heads off into the woods to tell her the big news she now has, and he finds him sitting by a log.

Mabel introducing her new "boyfriend" to her family.
To Mabel's surprise, Dipper reveals he too found something while he was out in the woods: a mysterious journal buried underground written by a missing researcher that reveals that there were strange things all around Gravity Falls and the area surrounding it, but he had to bury it because he had to hide it from a mysterious enemy. Immediately afterwards Mabel then reveals her "new relationship" with Norman, and after some introductions he & Mabel head around town to go out on their "date", but unlike his sister, Dipper did notice something was off about him & after consulting the Journal, he went on to investigate who he is.

Mabel right before being kidnapped.
With her new "summer romance", Mabel and Norman (with Dipper secretly following them) go around town having fun all the way, where the latter is shown to have slow reaction time, garbled speech and always wore concealing clothes, so both Dipper and Mabel suspected he is not human, but while Mabel thinks he might be a vampire, Dipper believes that he is a zombie. Later when Dipper comes to her and he confirms his suspicions to her, Mabel turns him down with and after getting ready, she once again meets up with Norman and they head into the forest to be alone, but then when Norman says she wants something she should know about, an excited Mabel fully trusts her with it, but instead of a vampire, she soon learns that Normal is actually a group of gnomes, posing as a teenage boy, and their leader Jeff says that they're looking for a girl to be their queen and ask her to be it. But because of this newfound revelation and now seeing that her brother was right, a freaked-out Mabel warmly declines this, but they prove to be very possessive of their stuff and decide to make her their queen by force & kidnap her.

Mabel scaring the gnomes away.
Now captured, an angry Mabel is forcefully brought to the Gnomes home in the woods and she has a hard time keeping them all out of her way, luckily for her, Dipper comes rushing on the shack's golf-cart and after being cut-loose, he & Mabel race back home as fast as they can, but that is soon made a lot harder when the Gnomes reveal themselves to form a giant and they race all the way back to the Mystery Shack where they are soon cornered. Needing a plan fast, Mabel urges Dipper to trust her with this and she starts by pretending to surrender & says to Jeff she will marry him, but one he comes down from the giant gnome and is easily tricked into kissing her, Mabel quickly grabs the leaf-blower (which she had earlier used for "kissing practice") and sucks him in and with Dipper pulling the reverse switch, they blast Jeff right into the Gnome giant which blows up and far into the forest, before scaring the other Gnomes away.

Mabel & Dipper after beating the gnomes.
Though Mabel was excited by the adventure, she was also left glum by the loss of her potential love-interest and apologizes to Dipper about doubting him, but he cheers her up by predicting that she can always try again another time and they cap-up the adventure by doing their "awkward sibling-hug", afterwards Mabel & Dipper head into the Shack to get much-needed rest, where Stan allows them to take one thing from the Mystery Shack for free; Mabel's malaise melts away even more when she decides on a grappling hook. Though Grunkle Stan had something more like a doll in mind, she stands by it, following this Mabel learns that Dipper is deciding to keep the Journal and after what they had just encountered, she is more than willing to join him in finding out what other secrets Gravity Falls has to offer, little did she or Dipper know was that Stan too has a secret that's far from just a normal scam.
Gaining an un-wanted admirer[]

Mabel meeting Gideon for the 1st time.
A lot of time of finding new-and-bizarre things in the town later, Mabel watches a commercial that sponsors her uncle's business charlatan rival Little Gideon Gleeful: a child-psychic who acts as something of a sham-faith minister, claiming he has the answer to everyone's questions for a fee. But despite being ordered by Stan to not interact with the "competition", she along with Dipper & Soos decide to check-out what Gideon is like, and they immediately see that he also takes advantage of the town's gullibility & while Dipper remains unconvinced, Mabel is still amazed with the latter's performance, unaware of something else that occurred.

Mabel freaking out as she's asked out on a date.
The following morning, Mabel finds Gideon by the door and the latter asks if she could show her around his place, to which Mabel agrees to and they soon start hanging out more behind Stan's back to even striking up a good friendship with one another, but while she remained platonic in their relationship, Mabel soon learns too late that Gideon had fallen for her and asks her out on a date. However this time around she doesn't have the nerve to explode with joy over being asked out, but she can't bring herself to say "no" to his request due to not wanting to break his heart and because the whole town wants her to be with him, after venting her frustrations to Dipper Mabel once again goes out with him to try and tone down the romance, but that very night Gideon pulls her deeper into love zone & into another date.

Mabel thankfully hugging Dipper.
Terrified about this new plan along with the fact that Gideon will be bringing her to a romance-themed restaurant, Mabel is left completely clueless on how to handle this, but she is calmed down by Dipper by pointing out it can't be worse and she's feeling alright with that... only to be told by Stan that she has to marry Gideon; while he was completely against Gideon dating her, he was won over by this aspect by the promise of a lot of money in a partnership with him. Learning about this makes Mabel even more mortified than before and this causes her to scream into the attic and sulk about her engagement with someone she doesn't love (not to mention too young on both their ages), but willing to help his sister out of this predicament, Dipper offers to break-up with Gideon for her and she happily embraces him for it, and heading to the restaurant he does just that and he & Mabel assume it's just fine.

Mabel dumping Gideon herself.
A few days later while hanging out with the gang & despite feeling a lot better after the restaurant break-up, Mabel still feels some unfinished business with Gideon due to not breaking up with him herself, but after a one-sided talk with Wendy Mabel decides that she is gonna have to officially break up with Gideon herself. But seeing that he's nowhere to be found in his home, Mabel realizes that the only other place he would be is the abandoned factory, but upon arriving there Mabel finds Gideon revealing his true colors when she sees him attacking Dipper, from there she pretends to make up with him before prying out the amulet he was wearing (which somehow allowed him to use psychic powers) and throws it to Dipper.

Mabel saving her brother & Gideon from crashing.
But just as Dipper mocks him that he's now powerless without his amulet, a furious Gideon charges at him that forces both of them out of the factory and sending them falling deep down over the cliff it was hanging over. But Mabel manages to learn how to control the amulet and flies down after them to stop them from crashing hard into the ground, at which Mabel makes it crystal clear that she will never date him & destroys the amulet, but Gideon assures both twins that this feud between their families is far from over and creepily vanishes into the woods.
After the creepy encounter Mabel & Dipper return to the Shack in exhaustion and watch TV, just as Stan also arrives back home (with a stolen painting) and tells them that because of Mabel breaking up with him, he officially ends the partnership with him and angrily vows vengeance on their whole family. Regardless of the death-threat, Mabel and the rest of her family remain completely confident that they can handle any threat the little con-man can throw at them and continue to spend the rest of the night with comfort, completely unaware that not only that Gideon can & will make good on that threat, but he too is vastly aware of all the weirdness happening in the town with his own journal (the differences being a 2 in the front) to boot.
Making friends & rivals[]
A few days following the incident with Gideon, Mabel helps the others with setting up a party Grunkle Stan is planning on hosting in the shack as another (and more effective) way to attract customers to the shack. Along the way Mabel and her brother are later tasked with the task to hand-out fliers promoting the party as well as told that the old paper printer in Stan's office is working again, but also find that the printer can also copy parts of human beings (& ones as a whole) and make them alive.
Gravity Falls - Pacifica Arrives
Mabel meeting new friends... & enemies.
Eventually once the party begins, Mabel immediately begins hanging out with all the guests that have come to visit, but after she heads to sit, she meets 2 girls named Candy and Grenda, and she immediately bonded with them. Soon afterwards Soos announces the main event for tonight, and the female Pines twin is promptly introduced to the child of the richest family in town Pacifica Northwest, and after hearing about the party's annual contest she immediately decides to compete, and while she ends up losing (mostly due to the rich girl cheating) she does gain the friendship of Candy & Grenda and they start hanging out, but she also won the animosity of Pacifica which she will learn about soon.
Uncovering a National mystery[]

Mabel & Dipper eager to find out who really founded the town.
One day, after getting caught in the middle of the town's annual "Pioneer day": the holiday in which is celebrated as the time Gravity Falls was found, which Grunkle Stan hates (because everyone basically acts like it was the pioneer times), Mabel is eager to start up the festivities, but Pacifica (still angry about almost losing to her) ruins her spirit by getting her odd behaviors mocked publicly, and because her great-grandfather was the "town founder" everyone joins in on the mocking. Resting up at the founder's statue, Mabel would soon learn that the author has discovered that Nathaniel Northwest might not have been the man history passed him off as, and seeing this as the chance to prove to Pacifica that she can be serious, she decides to come along with Dipper to find out, unaware that a someone is hot on their trail too.
Beginning their search for the truth in the library, Mabel and her brother slowly but surely (along with following Mabel's silly antics) followed the one code the author had discovered to discover who the real founder is. But when they found the 2nd clue, they realize that the 2 idiot cops of the town, Blubs & Durland are following them & speed up their search for answers.

The twins about to find their answer.
Learning that the 2nd clue leads to a angel statue Mabel found in the cemetery, she and her brother find it also acts as a doorway to a hidden compartment and after narrowly evading all the booby-traps inside, the mystery twins find a bunker filled with all sorts of American secrets. When they find the file that involves the Northwest family, Mabel and Dipper read it to learn (much to their amusement) that Nathaniel Northwest was indeed not only a fraud, but really just a "waste shoveling village idiot" that was randomly picked by the government to cover-up the real founder: Quentin Trembley.
Gravity Falls - Who is Quentin Trembley?
Watching Quentin's history document.
Suddenly Blubs & Durland showed up on the scene and Mabel & Dipper quickly nag them into explaining who Quentin Trembly is and why it's so secret, something which the cops decide to do. Playing a black-&-white film reel (much to Mabel's annoyance), Mabel and Dipper learn that Quentin was more than just the town founder, but also a former president of America (8½th president to be precise, though he only got the job because all the other contenders were killed in an actual landslide which made him win by default). But he was shown to be an incredibly insane man whose crazy laws ultimately led to him getting kicked out of the office & naming the valley that would become Gravity Falls, and afterwards replaced by William Henry Harrison as President & Nathaniel Northwest as town mayor & founder, after watching the film Mabel & Dipper are soon shown the very body of Trembley that's encased inside a block of solid peanut brittle (in an attempt to live forever), and learn that the cops found them threw Mabel unknowingly leaving a trail of candy wrappers, much to her embarrassment.

The twins realizing Trembly is alive.
Things only get more worse for her & her brother because under strict orders from the top, Blubs and Durland capture them and put them & Trembley's body inside a crate that's being shipped all the way to Washington, where an upset Mabel gives up & admits that Pacifica was right about her being a goofball. But while moping she unknowingly takes a bite out of the peanut brittle block which immediately falls apart, but to her & Dipper's Surprise, this reveals to them that Quentin Trembley is still alive, and it was at this sight that Mabel begins to accept who she is regardless of what others might think of her.

Mabel & Dipper bidding farewell to Quentin.
Following this, Mabel, Dipper, and Trembley immediately went out of their way to escape the train with Blubs and Durland hot on their tail, but once they run out of train to cross, Dipper is able to get Quentin to trick the foolish cops into going on a vacation and not tell anyone, to which they do. Afterwards the twins and Trembley head back to town and Mabel, happily accepting her silliness, decides to keep Trembley's status a secret (though Dipper goes ahead and does it anyway), and before leaving, Quentin makes Mabel a "congressman" in a form of gratitude and she & Dipper head off to meet back up with Stan.
A Time-travel fiasco and a new pet[]

"Everything is different now."
Later one day, when Stan hosts a (barely legal) carnival to attract in more tourists, Mabel wanders around the fair and spots a game where she can win herself a live pig from the local farmer Sprott. Upon spying around the pen to see which pig to win, she spots one that once it oinks, she interprets as it saying her name, and wins it when Sprott foolishly gives away the way to win it, and she happily bonds with it and gives it the name Waddles.

Mabel meeting Blendin
Though once she rushes to show Dipper her new pet, she realizes she timed it a bit too soon as Dipper had accidentally game Wendy (who agreed to hang out with him at the fair today) a black eye and has just begun dating a guy named Robbie, which greatly upsets him. Later that even when she and Waddles try to cheer a depressed Dipper up a mysterious man who Dipper bumped into while trying to help Wendy, and upon cornering him, they learn that he's really a time traveler from the future named Blendin who has a tape that acts as his way across time & is on a mission to stop a time anomaly hear.
Though after convincing him to take a break for awhile, Dipper uses this chance to swipe his tape and use it to prevent himself from hurting Wendy, something which Mabel wants to tag along with wants to go back in time to remember her greatest moment in life, adopting Waddles, which she does again and again once they have the device, while Dipper keeps on going back to stop Robbie from dating Wendy. Eventually Mabel helps Dipper succeed, but this leads to Mabel not winning Waddles. They get in a huge fight and end up going through time, to the 1800's, the Jurassic period, the future, marks from their previous adventures, to heading to the Mystery Shack about 20 years ago, before ultimately traveling to the present they had just created.

Mabel thanking Dipper for saving Waddles.
Though after Dipper rejects Mabel's plea to get Waddles back, she gives up and becomes miserable from a day all the way into a month, causing a guilt-ridden Dipper (who time-traveled further to prove she'll get over it) gives in and reverses the timeline so she can have Waddles, something which she thanks him for. Afterwards to show another sign of gratitude for Dipper's sacrifice (after accidentally causing the anomaly Blendin was supposed to stop & getting him in trouble with his superiors), Mabel sic's Waddles on Robbie and gets him humiliated in public, something is enough to cheer her brother up.
A big/little adventure[]
Sometime afterwards, after going through an attempt to steal the shack by Gideon and competing with her brother in a chess, Mabel discovers she is taller than Dipper by 1 millimeter (0.03 inches) and believes she will become an "Alpha Twin". She starts teasing him about it, unaware that this would force Dipper to take a piece of the height-altering crystal he found in the forest and attach it to a flashlight.
Using the enhanced flashlight, he increases his height, growing just a bit taller than Mabel, and tells an excuse to cover the secret by telling her he had a growth spurt because of puberty. But the moment Mabel finds out about his secret, she fights with him over the crystal flashlight, which ultimately causes it to fall into Gideon's hands, what's worse is that Gideon overheard the whole thing and shrinks the twins and takes them to his house.
While there, Mabel and Dipper are taken to his room and the little charlatan attempts to use them as blackmail so Stan will willingly give him the shack, but when he doesn't believe him he opts to just simply use the flashlight and shrink him to take the mystery shack by force. With this in mind Gideon heads to the shack while leaving his pet hamster to guard the twins, but they escape and race him back to the Shack by using a balloon.

The twins tickling their enemy to submission.
However upon arriving back at the shack, the twins start arguing about their height again, and Gideon captures them again before shrinking their Grunkle... only to learn that it was just Soos wearing Stan's hat, but he then reveals where Stan currently is and stuffs all three of them in his pocket. While inside his pocket, Mabel tells Dipper the only reason she made fun of him was that he always rubbed his victories in her face, and Mabel notices, even when they were tiny, that she conserved her millimeter. The two make up and escape. They immobilize Gideon by tickling him, and Stan kicks him out of the Shack. The twins regrow themselves, and Dipper lets Mabel keep her millimeter.
Spooky Summerween[]

Mabel and everyone facing the Summerween trickster.
Later on June 31, upon learning about Gravity Falls has a summer version of Halloween (due to them loving the holiday so much), Summerween, Mabel and Dipper become very eager to trick-or-treat with Soos, Candy, and Grenda. But right after throwing away some "loser cadny", they are confronted by a beast from town folklore known as the Summerween Trickster, who threatens to eat the group if they fail to get him 500 pieces of candy by midnight.
Mabel retains a positive outlook, seeing it as a reason for Dipper to trick-or-treat with her, since he said he was sick. The gang begins to collect treats, and Mabel soon realizes that Dipper putting on his costume would greatly increase the amount of candy received at each house. As Dipper talks to Wendy about the party, Mabel and the others, who had gone to obtain the final piece of candy, overhear the conversation, thereby learning Dipper's motives for getting out of trick-or-treating: to attend a party with Wendy, and Mabel felt betrayed and grows angry at her brother.
After the group reaches their deadline for getting the Trickster's treats, the monster comes and, since the group lacked the required candy because of Dipper accidentally dumping it into a stream, attempts to eat them, only to be destroyed when Soos drives through him, but as they drive away they watch in horror as The Trickster then reassembles and chases the twins, Soos, Candy, and Grenda into the Summerween Superstore.

Mabel with a bandage.
As they hide from the monster, Mabel reveals why she was upset with Dipper is because she was worried this might be the last time they'll be trick-or-treating. After reconciling over their earlier argument, Mabel & Dipper along with their pals attempt to escape, but Soos gets the Trickster's attention and gets eaten, this leads to the kids to launch an attack on the beast, but as they battle they learn that the Trickster is made of "loser" candy who came to life in retaliation for all the times it wasn't eaten, fortunately because he is made of candy, Soos bursts out of him eats the monster from the inside out.
Returning to the Mystery Shack, everyone, including Stan, Wendy, and Waddles, watches movies, eats candy and "celebrates pure evil" while Mabel has a wound she got earlier by Dipper, much to her happiness.
Head of the Shack[]

Mabel making a bet with Stan
On one relatively extra stressful day of dealing with her great-uncle's methods of how he runs the business, Mabel tries to at least be nice with but soon grows fed up with it, so once the day is done, she storms into his office to confront him about it, specifically with how he mistreats his employees, though Stan is firm with his ways and even insults her methods for it. This ultimately leads to the two of them making a bet: whoever makes more money (Stan on vacation vs. Mabel as the boss) than the other in three days' time will be placed in charge for the remainder of the summer, Mabel even has both of them have insults to that bet where if she loses, she has to where a shirt with a big "LOSER" all summer, something both take to heart as Stan heads away.

Mabel as the new head of the shack.
With her conman relative away on his break and using the techniques she learns from Succeeding In Management 1983, Mabel encourages her employees to follow their dreams and accepts suggestions from them, much to the others' delight, and gain as many money as they could. Unfortunately, things start to get out-of-control when Soos (who wanted to act as the Shack's mascot) and Wendy begin to take advantage of her, and things get a little crazy that she unfortunately has to give out refunds to all the upset tourists.
Gravity Falls - Gremloblin
Mabel's Gremloblin problem.
Things become extremely complicated when she has Dipper capture a real beast (in retaliation to all the fake attractions Stan has around the house) for tourism, which he does in the form of a goblin/gremlin hybrid called the Gremloblin, which people somehow buy as fake. When no one was looking, Mabel snuck the key to his cage inside of it for its "five-minute break", and he uses his break to go on a rampage throughout the shack, during which Mabel sees that Stan had entered a game-show where he can win money and he is winning by a landslide, much to her horror.

Mabel finally getting serious.
While attempting to fight it, Mabel pours water on it, which only makes it stronger, and the creature continues destroying parts of the Mystery Shack and going for the profits, Mabel runs out to stop it, but ends up seeing her worst fear, fortunately Dipper saves her by using a mirror to make the Gremloblin's powers backfire on it (as his fear is being like his father) and he flees the shack. Although the monster is defeated the shack is left in ruin and with everyone else still taking advantage of her niceness, this leads to Mabel finally snapping, and she bosses around her workers like Stan and makes a large profit to make the repairs in doing so.

Mabel after realizing she won after all.
Sadly, due to the various expenses thanks to the Gremloblin attack, she is ultimately left with a single dollar; nonetheless, meanwhile, she still beats Stan in the game show, whose total is nothing after he pushes his luck too far and spends all the reward money for nothing. Despite her win, she rejects the opportunity to remain in charge, and she and Stan agree to stick to their places in the business... right after Dipper reminds her of her side of the bet: Stan has to perform an "apology song" about how wrong he was with lyrics by her, something she quite easily remembers and she does it with great success.
A wet adventure to her first kiss[]

Mabel introducing herself to her newest crush.
On the hottest day of the summer, Mabel and the others head to the local pool where she spots, as her annoyed brother would remark, another one of her "crush of the week" guys she lays eyes on: a dashing Spanish-looking guy who Soos tells her that he is a "mysterious loner" because of a rumor about him saying that he never leaves the pool. Regardless of what the others are thinking about her "boy-crazy" faze, Mabel once again makes a dash for love with even putting up the hopes of finally getting her "first kiss" she's been dreaming of, upon meeting him and introducing herself, Mabel and the guy manage to come off quite friendly to each other, but passes her off as he says he's got a "terrible secret".

Mabel discovering Mermando's secret.
Thankfully due to all the weirdness she has run into this far, this secret only infatuates Mabel to him even more as well as determined to find out what he means by that secret by offering him a sandwich, which enough to convince the stranger to reveal his secret. To her surprise, Mabel finds out the reason behind him never leaving the pool is because he's actually a merman who is a teenager named Mermando, when the curious young girl asked why a creature like him would be living in a public pool, the young merman tells her the story about how it happened:
Sometime ago before summer began he lived peacefully somewhere in the coast of Spain, but that all changed for him when one day he was swimming with his dolphin friends when he got himself captured in a fishing net, and (quite slightly fortunate for him so things won't get out of hand) being mistaken for a giant fish, he is scheduled to be made into fish food. Upon being placed into a truck, he arrived just outside Gravity Falls and managed to escape the truck and into the river, but as he tried swimming down the river and into the ocean, he got shoved offshore away from the river, he was fortunate enough to be saved by the neighboring animals, but he stumbled down a hill and right into the pool.
Mabel's Merman 🧜 - Gravity Falls - Disney Channel
Mabel night swim with Mermando.
Amazed by his story, Mabel admits to not being freaked out by his merman nature, and they begin bonding over the various pool activities together, and when the pool closing time arrives, Mabel permits to Mermando's invitation to come back to the pool tonight. Once everyone at the shack had fallen to sleep, Mabel heads off back to the pool and using the net next to the gate, she crosses over before joining her merman crush in the pool. However, after talking about her family to him, she soon realizes that he too has a family out there in Spain and still misses them dearly, despite still trying to make romance happen between them, Mabel decides to put his happiness first and break him out of the pool.

Mabel's first kiss.
The following night, bringing the Golf cart through the gate with her this time, Mabel is able to stuff Mermando inside one of the pool's water cooler's and drives him to the town lake where (with some late help from her brother) she drops him into the water, and giving him a megaphone to better call his family that he's back. However before he leaves for Spain, Mermando gives the girl his gratitude for being able to go free again and as an added bonus, while also granting her wish when she first laid eyes on him, gives Mabel her very first kiss before saying goodbye, later in the morning Mabel, still a bit upset that she had to say goodbye, stares down at the pool where she receives several messages in bottles from him, remarking about how she'll never be forgotten by him and continue to talk through many more bottle in messages from him soon afterwards, much to his delight.
Journey into the mind[]
Dreamscaperers - Clip - Gravity Falls - Disney Channel Official
Mabel watching her uncle beat up Gideon.
On a rainy day, Mabel and her family watch a Gideon commercial promoting him opening his business on the Mystery Shack grounds, which is a threat Stan brushes all off their soldiers as it is something that can only be legal if Gideon has control over the Shack's deed. Which is something they both hear & watch him do right now, and although Stan immediately chases him out and comment to himself about the security of the safe containing the deed's combo: his brain, Gideon decides to get it by having someone worse do the job.

Mabel & Soos watching Gideon summon a demon.
Later the next day, while cheering on Soos to try and lick his own elbow, Mabel overhears Gideon's laughter in the forest which prompts her and Soos, still a bit shaken up about his earlier heist for the Shack's deed, to check out what he's doing this time. Finding him out in a clearing, Mabel & Soos secretly watch him perform a ritual that briefly turns the whole world all static-like, which then gives way for a creepy sentient triangle-like spirit named Bill Cipher with unique abilities as well as a very messed-up personality.

Mabel and the gang before they enter Stan's mind.
Watching from behind, Mabel and Soos watch to their horror as Gideon gives the being a job: to enter Stan's mind and steal the code to his safe, which is something Bill (who somehow secretly knows Stan) agrees to as long as he agrees helps him with something he's been working on before vanishing away. Scared about what both of them will do, Mabel and Soos race back to the house (stopping for snacks on the way) to warn Dipper about Gideon and Bill's scheme, which is something the dream demon does as they watch his silhouette take over Stan's mind, fortunately, Mabel is able to find a spell that allows anyone to enter the mind as well and after convincing Dipper to help, they along with Soos make preparations to enter Stan's mind.

Mabel and everyone officially meet Bill Cipher.
Getting all the items necessary to make the ritual successful, Mabel, Dipper, and Soos all magically transport inside Stan's mind where they find all but a big black version of the mystery shack in the center of it all before immediately encountering Bill himself. Despite Mabel trying to attack him, the one-eyed triangle proves to be to intense for them to handle as well as his power over the mind by bringing two guys from a movie she likes to life, which easily distracts her before entering the memory shack, regardless of what they're up against, Mabel and co. along with her dream boys venture into the Shack as well to beat him to the code memory.

Mabel right after Bill finds the memory.
Upon entering the Shack, Mabel and co. find numerous doors with memories for every bit of Stan's points in his entire lifetime and begin searching in every single one of them to find the code, with each one being the wrong one. Eventually after some searching Mabel realizes they have to think like Stan if they wanna find his code which is able to work with ease, however just as Soos destroys the memory, another Soos pops up & the one carrying the memory reveals himself to be Bill, upon transforming back he teases Mabel and Soos over their stupidity and runs off with the memory in his hands.

Mabel successfully getting the memory away.
Now with their fears close to coming true, Mabel urges everyone to race after him, when Dipper arrives shortly after, he expresses rage about the possibility of Stan hating him and refuses to offer further help, leading to his sister and the others to go to confront Bill without him. Mabel and co. manage to finally track down Bill just as he is giving Gideon the code numbers and just before he can tell him the final number, Mabel manages to blast it out of his hands into a hole memory just in time, which is enough to enrage Gideon so much that he calls off his deal with Bill.
Gravity falls Dreamscaperers Fight
Mabel & the others facing Bill.
Despite saving the Shack, Mabel and the others soon find out they only got even worse problems on their hands now as they also succeeded in enraging Bill, leading him to corner them in a ring of fire and torture them with their personal nightmares, with hers being a gross monster and killing her dream boys. But just before he can do the same to them Dipper, after seeing a memory of Stan's appreciation for him, arrives in the nick of time & tells them you can do anything in the mind, which they manage to do with ease as they fight back, however Bill still proves to be more powerful than them, but is nonetheless now impressed with their creativity & leaves them be, but not before telling them about a coming darkness, just as Stan wakes up and they commemorate their win.

Mabel and her family after Gideon takes the Shack.
Unfortunately, all that goes out the window again when they are caught off guard by a surprise explosion from behind and Gideon appears in the living room, because he decided to go with something else to get the Shack's deed: blowing up the safe with dynamite. Despite Mabel & her family's objections, Gideon victoriously declares the Shack's grounds to be officially his and orders his father to begin tearing it down, leading to a horrified Mabel and everyone else to escape the house & watch in horror as Gideon tears apart the Shack.
Fight for the Shack[]

Mabel & her family at Soos' place.
Following Gideon's surprise victory over them, Mabel and her family are now forced to live at the house of Soos' Abuelita, where soon after waking up the following morning, they watch a television report about Gideon and his plans to rebuild the Mystery Shack in his own image. Even though the odds are greatly stacked against them, Mabel opts to be the "hero of the family" when Dipper has no plan, but since all her plan involves just using her grappling hook, as well as the state Soos' house is in, her family races to get the Mystery Shack back.

Mabel & her family carried out.
Getting disguises the sneak into the crowd, Mabel and her family watch to the shock that Gideon plans to turn the entire land of the Shack into a theme-park after himself, and he pretty much provokes Mabel into attacking when he reveals to have plans on making Waddles the mascot. With that, she along with her brother & uncle march up on-stage in an attempt to unmask Gideon about his theft to the town, but due to Stan's low credibility and the cops too hooked up on Gideon's likability, nobody believes them and they are promptly thrown out their home again.

Mabel & Dipper going to save the Shack themselves.
Soon after that disastrous attempt, Mabel attempts to make the most of her new situation, but she is unable to do it when Stan, with no other way to get money to support the kids and having apparently given up, sadly admits to all of this and decides to send Mabel and Dipper back to their parents. Still determined not to let Gideon win, Mabel & Dipper decide to break into the Shack and, deciding to use something out of the ordinary written in the Journal to their advantage, prepare themselves to take back the deed & get back the Shack themselves.
Gravity Falls - Leaving Gravity Falls (The First Time)
The Twins head home in defeat.
Spying on the constructions Gideon's doing to the Shack, Mabel & Dipper go through all the things in the journal that could prove to be useful in stopping their little nemesis, but seeing how most of them are proven to be too dangerous, Dipper decides to seek help from the Gnomes to save the Shack, much to Mabel's disgust. Heading back to the Gnome's home, Mabel & Dipper manage to get Jeff to help them by making them think Gideon is a girl they can make their queen & they attack Gideon, however Gideon, with the help of a dog whistle, turns the Gnomes against them and takes Dipper's journal and with no other way to stop Gideon, the twins accept defeat and sadly head back home.
Gravity Falls - Chased By Gideon Robot
Being chased by a giant Gideon bot.
As they ride the bus back home, Mabel attempts to lift her depressed brother's spirit with a little game of "eye-spy", but the thought immediately turns to horror when they see a giant Gideon-bot, piloted by the real deal, furiously coming after them. They try to escape from him, but he soon corners them atop the cliff above the town where angrily demands them "where is Journal #1", which confuses them both, but he throws Dipper out of his way and plans to still find the Journal with Mabel as his "queen", as she desperately calls for her brother to save her, to which there was no answer.

Mabel proving her grappling hook is indeed useful.
But just when it looked like Gideon had finally won, Dipper leaps inside the robot and fights Gideon, with his successfully causing the robot to drop over the cliff, but just before they can hit the ground Mabel saves herself and Dipper with her grappling hook, proving to both of them that it can come in handy, and he even recovers his Journal. However once a crowd comes around the wreckage, Gideon attempts to frame the the twins for the damage and arrested, but before that happens Stan reveals that Gideon has been spying on everyone, causing his reputation to be ruined him to be the one arrested, and the Mystery Shack deed to be returned to Stan.
Gravity Falls- Season 1 end scene + credits
The Pines family victory.
With their main enemy finally locked away in the big house and out of their heads for good, the Pines family then returns to and repairs the Mystery Shack and because of his heroic deeds in unmasking Gideon, Stan is now getting even more customers than he ever had before. Afterwards after settling back in, Dipper decides to show Stan the Journal, which he promptly takes, but as he laments it's again Mabel consoles her brother, telling him he doesn't need it to do great things and they continue to celebrate with Soos, unaware of the big plans he has for it.
A terrifying party night[]

Mabel as her uncle hosts a victory party.
The day following Gideon's defeat, Mabel is very excited for the upcoming after-party to celebrate his defeat and her family reclaiming the Shack, espcially because of the extra special part she planned: the "Karaoke Bonanza", and is especially hoping for no more danger occurring. That following night though, as Mabel is looking after the party, it is soon brought to a screeching and terrifying halt as Dipper, in an attempt to woo some investigating federal agents, unintentionally raises a horde of Zombies buried under the Shack, which cause the guests to flee.

Mabel chastisizing Dipper for ruining the party.
Doing their best to avoid being bitten, with Soos falling victim in the process, the twins dart into the Mystery Shack when they are cornered by zombies, they try to board up the doors and windows with various objects and furniture, but the zombies break through a window despite their best efforts. Once they are slowly being cornered by zombies, Stan appears and begins beating down zombies with a bat, clearing a path for Mabel, Dipper, and Waddles to run upstairs.
Gravity Falls - Taking Over Midnight - HD
The Pines family destroying the undead.
Stan then joins them soon after. After Dipper discovers that certain texts of the journals were written with invisible ink and can be seen under black light, it is revealed that the zombies can have their heads shattered by a "perfect three-part harmony." Mabel then suggests they defeat the zombies by singing karaoke. The trio goes out on top of the roof and begins singing "Taking Over Midnight," much to Stan and Dipper's dismay. The three-part harmony causes the zombie's heads to explode, thus killing them. Once all the zombies are "dead," the three celebrate and go inside a heavily damaged Mystery Shack.
A bunker and a laptop[]
After the repairs to the Shack are complete, Mabel joins her brother, Soos, and Wendy back in the forest to where Dipper first found the Journal to unlock their biggest mystery yet: discover the man who wrote it, which they begin by looking back at the place where he first found it. Searching for any clues on who or what could it mean, they eventually find a lever that opens up a hidden door & they prepare to go inside, though just before entering the bunker, Mabel accuses Dipper of inviting Wendy because he likes her, to which he denies this, saying that Wendy is just a friend, but Mabel continues to tease him.

Mabel forcing Dipper to admit his crush.
Once they go deep in the bunker, they enter a special room full of all kinds of stuff, once there however Mabel discovers the note written by Dipper for Wendy confessing to her that he likes her, but seeing that her brother's too big a wuss to speak up, Mabel decides to take matters into her own hands. To that ends in order to make him confess his crush on him, she pushes him into a room with Wendy and locks up the door, refusing to let them out until he confesses.

Mabel realizing her mistake.
While waiting for him to confess, Mabel & Soos discover some stuff like a freeze chamber and a special briefcase inside the room. However when they go and take a look at the desk there, they discover to their shock that the author has locked a shapeshifting monster inside hear, and upon realizing that she just put her brother & friend in danger, she called Dipper's earlier call of a monster being a bluff, they race inside to save them.
Once she and Soos run into them as they are escaping the Shape Shifter, Dipper is suspicious if one of them is the Shape Shifter, and Mabel "inspects Soos' shape," poking his stomach, Dipper decides that it is definitely them. The gang decides to lure the Shape Shifter to them, so Mabel and Dipper go up to it. The Shape Shifter chases them to Wendy and Soos, who are turning on a powerful hose that shoots the Shape Shifter away and briefly fills the room with water.

Mabel apologizing for her earlier pushiness.
Eventually they discover that he's washed up on the ground right next to the freeze chamber, and after Wendy and the beast have a brief struggle and is pushed in, Mabel pushed the "on" button & the chamber activates, freezing the monster inside. Once out of the bunker, Mabel spies on Dipper as he confesses his crush to Wendy, to which she can't reciprocate but assures him that things are fine & heads home, afterwards Mabel comes up & apologizes for her earlier pushiness, to which he says it's OK.
Soon after Soos meets them and states that he is disappointed that they did not find the author, but once he shows off the briefcase he recovered, they learn it's actually the mysterious figure's old laptop. Soos says he could fix it in a few days' time, leading Dipper to think it could be their next clue and head home.
Mini-golf showdown[]

Mabel challenging Pacifica the a golf-off.
On a particularly normal day, Mabel excitedly races home to tell everyone that the news approved her advice for fashion and will be featured in the paper, only for this to be turned sour when she finds out Pacifica bought her & her own fashion tips into the front page, so her family decide to take a trip to the local mini-golf course (which she is very skilled at) to brighten up her mood. Arriving at the course, while it slowly allows her to have fun, the feeling is ruined once again by Pacifica when they bump into each other and things get way more heated up when she reveals she hired a trainer to get her skilled at it, not wanting to let the rich girl upstage her again, Mabel challenges her to a rematch tonight and after stopping by a break at the diner, she and her family break into the golf-course for her to practice on a lot more in preparations for the mini-golf showdown.
Gravity Falls - The Golf War - Meet the Lilliputtians
The twins meet the Lilliputians.
While practicing at the windmill hole, Mabel and Dipper begin hearing some strange noises coming from inside it and when they open the lid, they discover a tribe of little golfball-looking creatures called Lilliputtians, who live in the hole contraptions & control all the balls that roll in there. When they tell them they're for a face-off they soon find out different other tribes based on the holes themes but don't get along because they all believe their the best at moving the balls, with this danger Mabel convinces all the tribes to help her win the competition in exchange for a sticker with a picture of a trophy on it.

Mabel calling a truce.
Although it goes rather smoothly at first, things get to intense between the warring tribes get so driven to show up everyone else that they threaten to kill Pacifica unless they give her the sticker, when they do that Mabel decides that the competition (for the sticker) has gotten too fierce when they try to kill Pacifica, making her rip out and eat the sticker before making a speech to them about how it's a lot easier to work together. Unfortunately they completely miss her speech's point, and all the Lilliputtians put aside their differences to try to cut her open to get the sticker. She saves Pacifica and the two fight off some of the Lilliputtians until Dipper arrives with a golf cart where they escape in. Once out, Mabel offers her a ride home when her parents fail to show up, all the while starting to see a new, more kinder side to her.
A Sock Show extravaganza[]

Mabel meeting a new crush.
Sometime later, Soos manages to fix up the laptop and upon heading to the local library, Mabel & Dipper switch up the control to turn it on with nothing but an unknown 8-letter password remaining in their way of learning all the author's secrets & identity. Mabel is so focused on helping Dipper cracking it, but develops a new crush on a young puppeteer named Gabe Benson who, too lovestruck to think clearly, mentions she too is a puppeteer and is putting on a show next Friday, something which delights him dearly.

Mabel and gang preparing for the show.
Upon snapping out of her love-phase, a panicked Mabel requests Dipper's help, promising she'd help him crack the password once they finish the preparations for the last minute show, which is something Dipper reluctantly agrees, eager to finally discover what the laptop holds as they leave the library and for the next few days, they along with the help out with making a perfect story Dipper tiredly takes Mabel aside and informs her of his encounter with the "triangle guy." While shocked as well, Mabel reassures him that she's ready to help Dipper that day after passing along her puppets to her production crew, Candy and Grenda. However, this plan falls through when Gabe unexpectedly shows up, nitpicking a puppet show of another girl's he attended the night before. Feeling a rise in quality and pressure, and seeing her team's mishaps, Mabel decides to continue working on the show. Dipper angrily points out her promise and how breaking it isn't worth her obsession with her crush-of-the-week. However, Mabel throws the phrase back in his face and tells him that he's the one who's obsessed. She insists she'll help him after the show, but fed up and disappointed Dipper heads to the attic to crack the code himself.
Gravity Falls - Glove Story - A Sock Opera by Mabel Pines
Mabel's sock show.
After a while, with everything ready for her show, Mabel spots "Dipper" in the kitchen to tell him that she borrowed the journal to use as a prop for her show before heading out to the local theater to start it up. When the first act proves to be a success & Gabe enjoys it, she heads over to her dressing room to rest up, but to her shock she discovers that Bill has tricked her brother & has stolen his body, having destroyed the laptop in the process and is now setting his sights on the journal, leading her to go and get while Dipper (using the puppets to interact with her with no body to use) covers for the 2nd half.

Dipper fighting "Dipper" for control of the journal.
Heading on top of the stage where she placed the journal in, Mabel frantically searches for a way to get Bill out her brother's body, but soon Bill-Dipper (or Bipper, as dubbed by herself) arrives and threatens to ruin the play if she doesn't hand over the journal. Mabel refuses at first, but the one-dimensional cyclops tries to guilt and cajole her into giving the journal up; pointedly stating that she had no problem taking the journal for herself and ditching Dipper when Dipper needed her, Mabel hesitantly relents and gives him the book, but when he laughingly gloats about someone who'd "sacrifice everything they'd worked for just for their dumb sibling?" Mabel, strengthened by all that Dipper's done for her, yanks the book back and they both crash onto the stage - interrupting the play in the process.
Gravity Falls- Bipper is defeated
Mabel defeating Bill out of her brother's body.
Continuing to attack Bill until he leaves her brother's body, the evil triangle reminds Mabel that he doesn't know any of his weaknesses, however, because he's in Dipper's body, she realizes possesses the same weaknesses as him, and exploits this, which she starts by tickling him, and then making him aware of the fact that Dipper's body hasn't slept in 24 hours and is, therefore, exhausted, soon forcing Bill out of Dipper's body and allowing Dipper to reclaim it.

Mystery twins reconciling.
However Bill, now using Dipper's puppet, laughs menacingly and warns them of his bigger plans that would unfold in time, and that Dipper and Mabel won't be able to stop him, but Mabel ultimately shuts him up by lighting the pyrotechnics, destroying all the puppets in the process. Once all the pyrotechnics are finished are finished blowing up, Mabel assumes everyone'll think it's part the show, but because she said it out loud everyone leaves in a huff, especially Gabe who tells Mabel that he hated her show as she had made a mockery of his "art," and leaves, while dismayed at first, she quickly shows disgust upon seeing Gabe make out with his puppets, to which she remarks that she "probably dodged a bullet."
Once all the mayhem comes to a close, Dipper apologizes for his actions messing up her play, but Mabel ends up apologizing even more for wasting an entire week on some dumb guy instead of supporting her twin brother as she should have. Leading to the two to make up and get back on track with discovering the author as they join up with their family to head back home.
Facing a Blind Eye[]

Mabel upset with all her recent failed summer romances.
Sometime following the chaotic puppet fiasco, Mabel gleefully receives another message from Mermando and estate to know what he has to say to her this time, only to be sadly crushed when he confesses he'll be getting married to a manatee queen in order to prevent underwater civil war, which makes her depressed and look back at all the summer romances she's had ever since coming to town and wishes to just forget all of it. Fortunately her focus on her crushes is swiftly changed when Dipper still can't figure out who the author is especially now that the laptop is broken, and she manages to find a name under all the damaged wirings: McGucket labs.

Mabel discovering why McGucket's mind is broken.
With this knowledge, Dipper deduces that this whole, the town's local madman Old Man McGucket might be the man they've been searching for all summer and telling Soos and Wendy everything they've discovered, they travel to meet McGucket to see what he knows. Driving to the city dump where McGucket lives, Mabel & co. tell him what they think he is, but he's confused by their assertions and argues that he's never done anything worthwhile in his life, but as Dipper flips through pages in the journal to remind him of anything he is triggered by the page of a bunch of crossed out eyes, which makes Mabel deduce that this must be why his mind is acting the way he is.

Mabel & Dipper spying on the Blind Eye society
Helping McGucket remember where he last saw the eye symbols, Mabel and the gang along with a curious McGucket travel to the town's museum to search for who or what might have caused McGucket's amnesia, all the while continuing to be depressed over how everything is now reminding her of her summer crushes. Looking around for where the symbol is, Mabel and co. find it in a room full of eyes with a stone one leading inside a secret meeting room where they watch a bunch of mysterious hooded fellows bring in the diner woman lazy Susan, who was scared after seeing a bunch of gnomes, and using a special gun, they erase her memories relating everything about it.

Mabel deciding to erase all her crush memories...

...before being captured.
When the coast is clear, she and Wendy are placed on the lookout while the boys search for answers by looking for the place where all the erased memories are being hidden, while on guard duty, Mabel then talks to Wendy about her boy trouble and looking back at the memory gun, decides to use it to erase her memories of them despite all the other dangers it might have on her. But just before she uses it, they are caught by the robe individuals and are tied up alongside Dipper and Soos, when they ask who they are, they reveal themselves to be ordinary civilians who call themselves the Society of the Blind Eye where their leader Blind Ivan explain they were formed to erase the minds of all the supernatural sightings of everyone in town, explaining why all the townsfolk act ignorant today.
YOU CANT BREAK WHATS ALREADY BROKEN
Mabel & co. fight the society.
With the explanation now over, the society members then proceed to erase their memories of everything that happened to them this summer, but before they can do that McGucket saves them and they fight them off. Eventually, she and the gang are able to defeat the society members and using their own memory gun against them, they erase their memories of everything related the society.
Gravity Falls - "Society of the Blind Eye" McGucket's Memories
Mabel seeing McGucket's memories.
Afterwards Mabel and co. decide to watch McGucket's memories to see what he erased, where they learn that he was the one who founded the Society and while he was never the author, he worked with him years ago and gave him the laptop, and after watching the memories in it's entirety, McGucket decides it's best that he continue to carry on. With the lesson she saw from McGucket, Mabel decides to follow his example and keep her romance memories so she can learn from them, which is something everyone is proud of and they all head back home, still unaware of what Stan's doing right under their noses.
A Belated birthday party[]

Mabel & Dipper discovering Soos' birthday.
On one fine day after getting some candy thanks to Soos, Mabel and her brother find out that today is Soos' birthday, so she, Dipper, Candy, and Grenda throw him a surprise birthday party. However, they don't get the reaction they were hoping for: Soos goes away depressed. When Wendy sees this she then tells them how Soos dislikes his birthday though she doesn't know why, seeing as they need to fix this, the twins instead of trying to bring up anything to do with a birthday and bring Soos to his favorite place, Big Gunz Laser Tag.

Mabel & Dipper meeting Blendin again.
While running to the laser tag arena, they suddenly slip into a completely white room through a portal where they then meet Lolph and Dundgren of the Time Paradox Avoidance Enforcement Squadron. Surprisingly enough, Blendin appears before the twins too, stating that he had challenged them to a game of Globnar, where he hopes to win a special time wish to rid of their existence as revenge for them getting him fired.

The Twin's realizing the truth.
Not wanting to go through with this, Mabel uses a distraction which gives Dipper the chance to steal the time measuring tape for the two to use and go back to their time, but the two accidentally go ten years back to the past with the time measuring tape breaking. While trying to avoid the enemies tracking them, they head to the Mystery Shack where they meet 12-year-old Soos on his birthday, following him to his home to see why he hates his birthday, they find out Soos dislikes his birthday so much because it is a constant reminder of his father's neglect and abandonment.
Globnar Challenge 🌎 - Gravity Falls - Disney Channel
Mabel & Dipper competing in GLOBNAR.
Seeing Globnar and the time wish is the only way they can make Soos happy on his birthday, Mabel and her brother willingly let themselves get caught in order to win the time wish and give Soos his deepest desire, and they are brought before the all powerful Time Baby as they compete against Blendin in all sorts of games. After many challenges in the game, she and Dipper come out on top but before giving them the time wish, Time Baby asks what they do with Blendin, & although Mabel initially goes with death, after a bit of thinking, she & Dipper realize they really did get Blendin in trouble and as a way to make it up to him, they wish that Blendin have his job back and with hair, something he is very thankful for.

Everyone going to play laser tag.
Going back to the present, Mabel & Dipper along with Blendin tell Soos where they've been and they give him the time wish so he can get his wish, however when he learned just about everything they've done to make him happy, Soos doesn't use the wish to see his father and gets over him. So as a token of his appreciation for their love for him, he uses the wish to fix up Dipper and Mabel... and a slice of infinite pizza, and embraces the twins and the folks in the Shack as his true family and they continue to play laser tag.
Discovering Stan's secret[]

Mabel & Dipper being taken by the FBI.
However, on one fateful day, when it at first started out completely regular for them, Grunkle Stan decides it's come and tell them about something he's been keeping secret from them for this whole time, however this gets interrupted when the government arrests Stan for stealing toxic waste. With Stan being taken away to the local jail, Mabel & Dipper are taken to child services, but not willing to let them get away with it, the twins hatch a scheme to prove their great uncle's innocence: going back to the Mystery Shack and finding surveillance tapes.
Unless Stan isn't Stan- Gravity Falls scene
Mabel realizing Stan is not what he seems.
After managing to get out of the van they're locked inside in, Mabel and Dipper than race back to the Shack to get their proof, where she uses her trusty grappling hook to sneak inside without any of the guards noticing them, when they enter Stan's office, Mabel mentions checking the "antel-rabbit," and it is there that the surveillance tapes are found. However upon watching the video shows, they him actually bringing barrels full of waste, as Mabel tries to figure out what's the meaning behind it all, she soon stumbles upon Stan's box of fake IDs from all over the country and news clippings that say he's dead, which makes both of them believe that... Stan isn't Stan.
Terrified over the fact that they've probably been living with an imposter this whole time, Mabel & Dipper try to grapple with the fact until they find the code to Stan's secret room behind the vending machine, and after a quick scuffle with Soos, they finally enter. Mabel still has reason to believe Stan until Dipper finds 2 more Journals which when combined, form the blueprints to the blueprints for a portal which when turned on, might destroy the world, with this information the three try to shut down the portal until Stan bursts into the lab, begging them not to.
Gravity Falls- Epic Final Scene - The Author of the Journals
Mabel & everyone finally meet the author.
After being locked another anomaly, Mabel is faced with an extremely difficult choice; to shut down the portal and potentially stopping a world-ending catastrophe, or to believe Stan and leave the portal alone. Mabel's trust in Stan convinces her not to shut it down just as the portal fully activates, and what seems like an explosion occurs & light engulfs the entire town.
Once everything settles down under the Shack the portal reveals to have been mostly destroyed and the whole room is returned to normal, Mabel and everyone soon get their senses back in time as they watch a mysterious masked figure marching out of the portal. When they wonder who he is, the moment the figure takes off his mask, Stan stares in awe as he declares that the man is not only the six-fingered man who wrote the journals... but also his twin brother.
Learning the Stan's tale[]

Mabel questions Stan about everything.
Once the dust settles, after a brief struggle between the Stan's, Mabel officially introduces herself to the author before they all find out his real name is Stanford and that the Stan's real full name is Stanley. Regardless, now that everything is officially out of the bag and his secret mission to himself finally complete, Stanley decides to tell them everything that's happened to them in the past:
Way back in their youths in the 1950's, Stanley and Stanford were exceptionally close, though Stanley was a slacker troublemaker and Stanford a straight-A student, Stanley protected his brother from bullies who mocked him for his polydactyly, with both of them dreaming sailing away to live a life of adventure. But all that changed when on one day, Stanford built a perpetual motion machine poised to grant him entry to his dream college across the country, leading to an angry Stanley to accidentally wreck the machine before Ford could show it & wrecking his chances. Too depressed to think clearly, For accused Stanley of intentionally sabotaging him, but while he's only angry about him seemingly ruining his future, the twins’ coldhearted father, who only saw Stanford’s opportunity for him to be rich, disowned Stanley, in response, Stanley vowed to make it big himself and become a successful businessman, becoming the con-man he is today.
Stanford on the other hand attended a less prestigious college and after graduating, he moved to Gravity Falls to study the anomalies concentrated there after being inspired by his mysterious six fingers, where he recorded all his findings across the three journals today. But wondering where all the weirdness came from & with the help of his college friend Fiddleford, he built a universal portal that could lead to the home dimension Gravity Falls’s anomalies originated from, after a disastrous test run, McGucket left the project entirely, begging Stanford to destroy the portal especially when he refused to.
While ignoring them at first but slowly becoming wary of McGucket’s warnings, Stanford asked Stanley to visit him in Gravity Falls. Stanford gave Stanley the first journal and begged him to hide it far away, but really outraged that Stanford had no desire to reconcile, Stanley fought his brother. In the process, the universal portal was accidentally activated. A bitter Stanley punched Stanford through the portal, which broke soon after. Plagued by guilt with what he did, Stanley spent the next thirty years attempting to re-activate the portal, which he only accomplished recently after finding the other two journals, and to make ends meet and develop a cover story, Stanley assumed Stanford’s identity and faked his own death, turning his brother’s old house into the tourist attraction it is now.

Mabel frightened about her fate with her brother.
Following the story, however, government agents overhear the gang downstairs and head toward the basement, Fortunately through the use of the memory gun, Ford uses it to erase the memories of the government agents and explains the readings as radiation from a meteor shower and they all leave town. But that following night, Mabel overhears an uneasy reunion between the Stans as they work out a deal: Ford can live in the Mystery Shack’s basement for the summer to repair damage caused by the portal’s activation but must return everything back to him when summer is over, just as long as Ford has to stay away from Dipper and Mabel.
After eavesdropping on everything, a scared Mabel worries that she and Dipper might end up like Stan and Ford when they're older, and while Dipper assures her they won’t, Mabel lies awake, still worried that they'll fight and part ways and become bitter like Stan and Ford is.
A Dungeon adventure[]
Sometime after the portal fiasco, Mabel and her family adjust to living with Ford now that he's back from his interdimensional travels, during that time Dipper has found his favorite role-playing board and "Dungeons, Dungeons, and more Dungeons" from a store and asks Mabel to play it with him, but due to how he explains the rules to her she refuses.

Mabel & everyone facing a game brought to life.
She, Grenda, and Stan are all geared up to watch the season finale of Duck-tective, but they find that Dipper and Ford's game has taken over the entire room. After the game's mascot Probabilitor the Annoying is released by Stan and Ford and Dipper are captured, Mabel and the others set out to rescue them. After defeating a troll, they reach the wizard, who challenges them to a game of Dungeons, Dungeons, and More Dungeons. Mabel uses her imagination to create cool weapons and summons for Ford and Dipper. Thanks to her imagination and Stan's "luck," they succeed and send Probabilitor back to his own dimension. Afterwards, they all watch the second airing of the Duck-tective season finale
Helping Stan run for mayor[]

Mabel & Dipper becoming campaign managers.
A little while later, when they hear that Gravity Falls really old mayor finally passes away, Although things start out normal Gideon's father & assistant Bud starts his campaign as mayor which prompts Stan to participate to, confused on why he's doing this, Stan explains that once he leaves Gravity Falls when summer's over he won't have nothing to do & being mayor is the right place he needs, considering Stan will pretty much cheat his way to win, as well as suspicious on what Bud's really planning, Dipper & Mabel decide to help Stan win the elections legally.

The twins using other ways to help Stan.
Getting ready for Stan's mayoral campaign, the twins learn trying to make Stan look like a good candidate is easier said than done when he's forced to bring Stan out of a heated radio argument & his approval ratings soon drop from zero to the negative side, going to Ford for help, Dipper is given a pair of ties that when one wears one of them then they'll control anyone whose wearing the other which is able to get Stan enough votes for election day, but when he finds out about this he furiously tries to win this on his own, resulting in the twins to get Soon to participate in it himself.
On election day, in which the citizens are required to throw bird seeds at the candidate they like the most (because in the end they will release an eagle that'll fly to the candidate with the most seeds & kiss which will anoint him/her mayor), Bud somehow does surprisingly well & when the twins comment on how he's surprisingly acting like Gideon, they quickly discover that Gideon, having been spending all summer behind bars after his arrest, is actually controlling him in an attempt to control the town by other means & leaves them locked away in a monument for the old mayor that is set to blow up once the new mayor is crowned.

The twins with Stan who won the votes.
Attempting to escape the monument, Dipper & Mabel are soon dangling over the side, but just before they fall to their doom, Stan comes in the last minute to rescue them, apologizing to them for his earlier distrust from earlier with them and vice versa, when Bud tries to blow them up immediately, but they are able to avoid it in the last minute which Bud gets knocked out and at the last minute, with the whole town watching, they all throw seeds at Stan's location & when they release the eagle, he flies at Stan once he lands & officially makes him mayor, much to both Stan & the twins joy. That is until Stan is officially disqualified for every crime he ever did, which leaves the town's local enthusiast Tyler Cutebiker, the only candidate that filled out all the paperwork, win by default, despite this, Stan is still a hero to the twins & they go have fun by vandalizing Tyler's mansion.
The Quest for Unicorn hair[]

Mabel being prepared to go on a quest.
On a particularly normal morning, Mabel and Dipper think about spending the afternoon playing a dangerous board game, but Ford calls them back because he has grim news for them, Bill is starting to make his move and that they need to fortify the Shack so he won't harm anyone inside it. Even though he has all the items needed to successfully perform a ritual that'll make a barrier so that Bill won't touch it, Ford realizes that the last one needed is, much to his disgust, a bunch of unicorn hair that "can only be obtained by someone with pure of heart" to which she, having been in love with unicorns since she was young, offers to go on the task of obtaining it, completely leaving before Ford could mention that the unicorns in this town are "difficult".

Mabel distraught over the fact that she's not "pure of heart".
Gathering up her friends and Wendy to partake in this task, Mabel and the girls venture deep in the forest to where the unicorn grove is hidden, and after Grenda recites the ancient text needed to reveal the location to mortal eyes they march inside the stone ranch where they meet the only unicorn they can find there who goes by the name of Celestabellebethabelle. However when Mabel asks her if she can have some of her hair, the unicorn uses her horn to "look inside" the young girl's soul and informs Mabel that she is not pure of heart, therefore not allowing her to take unicorn hair.
Gravity Falls - Doing Good Deeds - HD
Mabel attempting to become pure of heart.
Distraught over the fact that she might not be the person she thought she was but knowing they need the hair to keep the Shack safe, Mabel decides to go do some nice things to truly be "pure of heart", to that end she and the girls go around town doing all sorts of good deeds in an attempt to strengthen her pureness. Unfortunately when they return to the grove, Celestabellebethabelle still deems her unworthy of getting unicorn hair. While Mabel tries to think of more ways to purify her heart, the other girls take matters into their own hands and decide to cut the unicorn's hair while she is knocked out by fairy dust.

Mabel & the girls battle for the hair.
Mabel attempts to stop them, taking Wendy's scissors away from her, however when Celestabellebethabelle wakes up and, upon seeing Mabel with the scissors, assumes the worst and decrees that Mabel will never be pure of heart. Suddenly, two other unicorns emerge from the forest and inform the girls that the "pure of heart" requirement was just an excuse to keep humans away from them. learning this, a now enraged Mabel strikes Celestabellebethabelle in the face, and deciding to help the Shack the hard way, leads the girls in a brutal battle against the Unicorns.

Mabel returns triumphant.
One intense showdown between the magical horses with horns later and the young girl and her friends, albeit slightly injured, return to the Shack triumphant with a lock of hair and a treasure chest given to them by the unicorns as a bribe to leave them alone. Now with all the ingredients needed, Mabel & her family can now rest easily in the Shack now that it's 100% "Bill-proof", little do they know the very same demon they're up against has been watching everything and simply decides to find his next pawn somewhere else in town.
A Grim Reality check[]

Mabel & Dipper's 13th birthday.
Soon after, excited about the upcoming week as it is their birthday. She and Dipper become even more excited as they realize they will finally become teenagers, and Stan and Soos join in on the excitement. Mabel decides to have the greatest birthday party before summer ends, and they proceed with the preparations; however, when Stan decides against having a party in the Mystery Shack due to their previous party incident, Soos suggests the Gravity Falls High School gym as an alternative. During their conversation, Ford calls for Dipper.

Mabel becoming scared about growing up.
Mabel overhears the two and tells Dipper to join Ford on his latest mission, giving her support to Dipper as well as giving him a walkie-talkie so they can talk to each other. Mabel and Soos go to Gravity Falls High School, but the school gym is filled with teens doing high school registration. They meet Wendy there, and Mabel asks Wendy about her high school experience. As Wendy describes her bad high school experience, Mabel is discouraged and tries to tell Dipper, but they get cut off. Soos tells Mabel to send an invite to her friends to cheer her up, which she proceeds to do.
The Fight 😢 - Gravity Falls - Disney Channel
Mabel's heart is officially broken.
However, after arriving at Grenda's place, her friends tell her they couldn't come to her party due to not being in the town (Grenda is on a cruise with her dater Marius, and Candy must go to music camp). Mabel eventually returns back to the Shack, deeply saddened. As she reminisces her summer, Stan comes to cheer her up, telling Mabel that while summer is coming to an end, Dipper is still there for her and Mabel feels better. However, Mabel overhears Dipper in the walkie-talkie accepting Ford's apprenticeship offer, and she begins to see her fears come true. When Dipper arrives, Mabel shows her distress over Dipper becoming Ford's apprentice and runs away to the forest after Dipper tells her he wishes to stay, because she believed that even when no one else was there for her, Dipper would be a constant.

"I just wish summer could last forever."
Somewhere in the forest, Mabel tries to cheer herself up but realizes she took Dipper's bag, now even more heartbroken Mabel goes into "Sweatertown" in distress and just wishes that "summer could last forever". This is when Blendin approaches her and offers Mabel a way to halt time so summer wouldn't end, and all he asks from Mabel is a snow globe-like object in return and Mabel, not knowing what it truly is and eager for more summer, gives it to Blendin.
Gravity Falls - The End Of The World
Mabel accidentally bringing forth the apocalypse.
However, what she didn't know about the item is that it's really a container for an inter-dimensional rift opening straight into Bill's world, and only Dipper & Ford knew about it as the former was told not to and the moment he has it, Blendin drops it on the ground starts laughing maniacally and reveals he was being possessed by Bill Cipher.
Mabel is shocked by what she had done, but she is instantly put to sleep. His plan succeeding, Bill emerges from Blandin's body as Mabel lays unconscious on the ground and with the container broken, the rift blasts into the sky as it bleaches it blood red & the portal the Bill's dimension the nightmare realm is fully-intact, leaving the insane chaos demon free to turn the world into his own personal carnival of mischief.
Life in Mabeland[]

Mabel getting her wish granted.
Even though he was so willing to annihilate the young girl then-and-now, Bill decided to happily hold up his of the his "deal" with Mabel and traps her in a bubble where she is free to bring everything she's ever imagined to life (albeit with a bit of Bill's nightmarish designs in anyone goes out of character) and giving her the wish she wanted. But while she's free to do pretty much anything in her fantasy, Bill now has absolute control over reality and quickly has all beings from his realm turn the town upside-down before they move on to take over the world & beyond.
Three terrifying days of a scarring "oddpocalypse" later, Mabel feels pretty keen on staying in this fake world forever and hopes to make it even grander. That is until Dipper, with a change of heart over his future plans, manages to rally up Wendy & Soos to find Mabel and bring the Isosceles monstrosity down.
A fresh reminder of hope[]

Mabel showing the gang her new world.
Upon entering the prison and being told where Mabel is being kept, Dipper, Wendy, and Soos find her in her bubble sleeping in a tower guarded by giant waffles with knives. The group raids the tower to save Mabel, but when Mabel wakes up, she reveals that she created a place called Mabeland inside the bubble, and she does not wish to leave.

Mabel bringing their argument to court
Dipper attempts to persuade Mabel to leave her imaginary world, but Mabel instead shows she created a more supportive brother, Dippy Fresh, in replacement of Dipper and prefers to stay. When Wendy and Soos get distracted due to being granted what they desire, Dipper leaves Mabel's tower and contemplates the situation. When Dipper soon finds Bill's monstrous side of his parts in making Mabeland, Dipper is once again determined to stop him but is arrested for mentioning reality, fortunately Mabel, still showing her love for him, saves him from banishment, but Dipper is tried in court for Fantasy vs. Reality.
Grow Up Together - Gravity Falls - Disney Channel
Mabel getting her faith in growing up restored.
Xyler and Craz present Mabel's case, showing Dipper and Mabel's unfortunate events through their years, but Dipper counter-argues that Mabel simply wanted to escape reality because she didn't want to grow up. Dipper shows that even through their tough times, they were there to support each other all the way through, and Mabel accepts the truth, giving Dipper a 'sincere' sibling hug. When they pat each other, the creatures of Mabeland turn against them but the twins, Wendy, Soos, as well as Xyler and Craz, escape from the bubble.

Mabel & everyone about to fight.
Mabel apologizes to Dipper and tells him he can be Ford's apprentice if he wants, but instead, he tells Mabel he will go with her since he doesn't want to miss their "awkward teenage years". The group returns to the Mystery Shack after seeing the town deserted. The group proceeds to raid the shack after hearing noises, only to be met by Stan and his resistance group taking refuge inside the Mystery Shack.
Showdown with Cipher[]

Mabel & Dipper rallying everyone to fight back.
After reuniting with Stan and all the other refugees who came to take shelter in the Shack, Mabel and Dipper soon learn that Bill has pretty much turned everyone that he captured, Ford included, into his own personal throne, now with the will to fight back, the twins rally the survivors into fighting back against Bill. But knowing full-well they'll need a way to march to Bill while inside the Shack, because the spell they made still remains active, they and everyone else help McGucket turn the Shack into a giant robot to help them do so.

Mabel & everyone ready for action.
By morning, Mabel and co. have completely finished the bot & begin piloting it directly towards Bill's palace, right then when Bill discovered that due to Gravity Falls' strong magnetism to anything weird it had made a barrier surrounding the borders of the town so strong even with his new cosmic power he can't break it, & when Ford admitted he found an equation that can break the barrier he began torturing to get him to shack his hand & willingly lets him inside his mind.
Arriving at Bill's doorstep, the triangle demon sends out his henchman to go deal with them, and using all the gadgets they supped up the bot, Mabel and co. easily sends all the demons flying off. This leads to an annoyed Bill to go deal with it himself, especially when he decides to torture the twins to get Ford to surrender, but thanks to the unicorn spell he's unable to put a dent in the shack and on Mabel's orders, they rip his eye off.

Watching the Zodiac do it's work.
With the nightmare demon distracted, Mabel and the rescue team suit up and blast off into the monster's fortress to rescue Ford, and they manage to successfully get inside the throne room where she find a petrified golden Ford. They at first don't know how to turn him back but with the help from Gideon, who decided to go goof for her, they turn everyone back and after reuniting with Ford, he then reveals that Bill's one weakness is linked to a special Zodiac by using the 10 specific symbols which will summon a force strong enough to destroy him & reverse everything he did, & all the symbols have the following:
- The pine tree being Dipper.
- The shooting star being Mabel.
- The question mark being Soos.
- The ice pack being Wendy.
- The six fingers being obviously Ford.
- The broken heart being Robbie.
- The glasses being McGucket.
- The lama being Pacifica.
- The telepathic star mark being Gideon.
- The fish being Stan.

Mabel & everyone watching Bill return.
Unfortunately just as the Zodiac is almost successful and it is about to end the madness for good, things go downhill almost immediately when Stan and Ford break into another yet another argument and Mabel and Dipper try to defuse it. This interruption immediately causes the Zodiac's power to immediately fade away, and it only got even worse from there when Bill returns to his throne room, having defeated the Shacktron.
Take Back The Falls - Dipper and Mabel vs Bill - Clip
The twins leading Bill away.
Overjoyed that basically everyone stopping him is all in one place, Bill destroys the Zodiac symbol before turning everybody but the Pines family into tapestries and threatens Dipper and Mabel's lives unless Ford tells him how to get rid of the barrier that's preventing him from leaving the town, allowing him to officially begin him multiversal-domination tour. When Mabel tries to convince him not to, this enrages Bill as he threatens to kill them now, but this allows her to put spray paint directly in his eye to distract him as she and Dipper attempt to find another way to stop him, leading Bill away as he completely goes full-demon and furiously chases after them across his castle.
Mabel and her brother are able to lose sight of the demon, but when the twins reach a dead-end, Mabel grows her hand using Dipper's flashlight in order to break the wall. However, they stop to see that everybody in the Shacktron has been captured by Bill's hench-maniacs. At this point, Bill manages to capture them and return back to his throne room and just as he is on the verge of killing them, a despondent 'Ford' "surrenders" and despite his family's protests, he lets Bill inside.

Mabel & everyone as the oddpocalypse ends.
But just as it seemed Bill had finally won, the twins soon learn that Stan and Ford have finally reconciled with each other and thinking quickly, they tricked Bill into entering Stan's mind in the brothers' plan to destroy Bill once and for all by having Ford shoot Stan with the memory-erasing gun which would wipe away Bill from existence while he was trapped in Stan's mind. When Bill learned about this too late, he is finally destroyed for good and with him gone, all the damage he did to the town returns to normal.
Oddpocalypse closure[]
Stan's Memories - Gravity Falls- Weirdmageddon 3
Mabel & everyone getting Stan to normal.
But while they succeeded in saving the world from a never-ending nightmare, Mabel becomes distraught as she learns Stan sacrificed his memory to save everybody and breaks down in tears. When they return Stan to the Mystery Shack, he still doesn't remember anything, but Mabel refuses to believe that her Grunkle is gone for good. She shows him her scrapbook of their summer together in order to jog his memory, which happily works like a charm.

The twins celebrating their birthday & Soos' promotion.
With weirdmageddon finally over, Mabel and Dipper happily celebrate their 13th birthday with the town and Mabel wishes that she could shrink the town's residents in order to take them home with her. But since it was probably impossible, settles for everybody signing her scrapbook instead, something she proves all-to-real by officially destroying the Memory Erasing Gun in front of everyone before she & Dipper blow out their candles and become "technically-teenagers".
As they are both unwrapping their presents, Mabel and everyone else get big news from Stan & Ford: now that they've finally buried the hatchet, they finally decide to embark on their dream of sailing around the world, but since they don't know what to do with the mystery shack, they decide to officially shut it down. But this decision leaves Soos devestated because while the Shack & everything else was fake, the memories they made here weren't, seeing the heartbreak in his number #1 employees eyes, Stan decides to honor his wish and make him the Shack's new manager.
Saying Goodbye[]
Goodbye Gravity Falls
Mabel & Dipper heading out into the unknown.
Once the last day of summer finally arrives, Mabel officially says her final goodbyes to her two new best friends and assures them they'll always have a place in her heart, but believing her parents will never let her keep a pig in their home, sadly tells Waddles that he's gonna have to stay in town which is something he doesn't want either, which is a future neither of them face when Stan & Ford scare the bus driver into letting him come with them. After saying one last goodbye to Stan, just before they step on the bus Dipper asks Mabel if she feels "ready for the unknown", something which she answers with a sarcastic "nope" as they both wave goodbye to their friends and head home to California, feeling ready as ready as they could be to face the next challenges ahead of them.