Arrival in Angel Grove
Adam came to Angel Grove along with his friends, Rocky DeSantos and Aisha Campbell from the town of Stone Canyon so as to take part in the final round of the Team Ninja competition. They met three of the Power Rangers, Tommy Oliver, Billy Cranston, and Kimberly Ann Hart, when they helped each other to save the baby of a teacher, when his stroller went down a hill and almost went off a dangerous drop. After finding out why the three had come to Angel Grove, the three rangers were surprised when they saw the trio compete and win.
Receiving the Powers
However Adam and his friends’ fighting skill and their involvement with Tommy, Billy, and Kimberly caught the attention of Lord Zedd. He planned to make the three into his own dark warriors and had Goldar kidnap them after they won the tournament. He chained them up inside of a cave and set a snake on them that would turn them evil forever with one bite. Tommy, Billy, and Kimberly went to their rescue and though they succeeded in saving them, but the snake wrapped around the Blue Rangers' throat, forcing him to remove his helmet in order to breath thus exposing his identity to Adam and the others. Tommy and Kimberly revealed their identities to them as well and took the trio to the Command Center, where the alter egos of Jason, Zack, and Trini were revealed to them as well. Adam, Rocky, and Aisha were then sworn to secrecy, promising never to reveal the rangers identities. The three then moved to Angel Grove, where they began attending Angel Grove High with Tommy, Billy, and Kimberly. After Jason, Zack, and Trini were selected to attend a peace conference, Adam was chosen to take Zack’s place as the Black Ranger. His friends, Rocky and Aisha, replaced Jason and Trini respectively.
Battles as a Ranger
Now the Black Ranger, Adam began fighting against the evil of Lord Zedd, who was eventually joined by Rita Repulsa. More about him was revealed after he became a Power Ranger, that he had been picked on and ignored when he was a child. After Adam began learning martial arts, he gained more confidence, but still had problems around girls. He soon found himself the target of Scorpina, who disguised herself as a normal girl named Sabrina. She wanted to manipulate Adam so as to keep him away from his friends before luring him into an ambush. Aisha didn’t trust Sabrina, but she tried to get along with her for Adam’s sake. However this mistrust allowed her to help the Black Ranger when Scorpina lured him on a hike in a remote part of the park. This encounter had a toll on Adam’s confidence, but he recovered when he caught the attention of a girl that Aisha had tried to get him together with. Later when all of the rangers except Tommy were sent back to colonial times, the Black Ranger became very close to a girl named Marissa, who helped them out. After they managed to get back to their proper time, Adam was clearly saddened until he ran into a girl who looked just like her, most likely her descendant.
Ninja QuestAfter Rita Repulsa’s brother, Rito Revolto, came to Earth and succeeded in destroying the Thunderzords and highly damaging the rangers’ Power Coins, they were forced to head into the Desert of Despair in order to find the temple of Ninjor, the creator of the Power Coins. After finding and releasing him, he gave the rangers new Power Coins with the powers of the ninja with Adam gaining the powers of the Frog. Later when Rita and Rito’s father, Master Vile, came to Earth, seeking to steal the powerful Zeo Crystal. The rangers succeeded in getting the crystal before Vile could and they then split the crystal into five sub-crystals, sending them into different parts of history.
Vile Turns Time
Master Vile eventually used the Orb of Doom, which turned back time and transformed the rangers into children, though they still had their memories. Unable to fight themselves, Zordon recruited the Aquitian Rangers, Aurico, Delphine, Cestro, Corcus, and Tideus. Billy then created a device that would return the rangers to their proper ages, using the Power Coins as its power source. He tested it on himself and it worked, but Goldar took this opportunity to steal the coins, allowing Rita and Zedd to destroy them. Thus the rangers needed new powers and each were sent back to a different place and time to recover the Zeo sub-crystals, which could restore their ages and act as their new powers. Adam ended up in Korea, where his grandmother was from, and met Kai-Ogi, a local sage. Adam then found the Zeo crystal by finding his behind a waterfall.
Mighty Morphin Power Rangers: The Movie
Adam and his friends are first seen doing a sky dying event with Bulk and Skull. Upon landing safety (Adam landing first), he and the others wonder where Bulk and Skull are.
When the Command Center was destroyed, the Rangers were forced to teleport to Phaedos in order to retrieve the Great Power with the last remaining power of the Command Center, to the dying Zordon's protests.
Once there, he and the other rangers meet Dulcea, who once learning of their mentor Zordon's plight, helps them tap into the power of the Ninjetti, where Adam learned that in him is an animal spirit waiting to be released - his being the Frog (much to his dismay). As Ninjetti, he and the rangers travel to the Monolith in order to retrieve the Great Power. Though waylaid by the Gatekeepers, Adam and the others manage to access the Monolith, which also bore the Frog symbol among its many creature emblems. It's here where Adam gained the power of the Frog Ninjazord. The zords return the rangers' powers and Adam finds himself clad in his familiar ranger armor with the Frog's symbol emblazoned on his chest.
He returned to Angel Grove with the other Rangers to battle Ivan Ooze and emerged victorious. With his Ninjetti power, he, along with the other rangers managed to revive the dying Zordon, reconstruct his plasma tube and return the Command Center to a fully-functioning state. Soon after at night, Adam and his friends enjoy hanging out.
After uniting his sub-crystal with the others, Adam and his comrades were restored to their proper ages. However a new threat arrived in the form of King Mondo and his Machine Empire, who drove Zedd and Rita off. Adam and the others harnessed the powers of the Zeo Crystal to become the new Zeo Rangers. Adam became the new green ranger, Zeo Ranger IV, and he and the others began their battle with the Machine Empire, a battle they eventually won.
TurboWhen Divatox, an evil space pirate, sought to unleash a terrible demon known as Maligore, Adam and the others were called on to stop her. Unable to pursue her with their current powers, they took on the new Turbo powers, Adam gaining the powers of Desert Thunder as the Green Turbo Ranger. After defeating Maligore with their new Turbo Megazord, the rangers emerged successful. However Divatox began assaulting Angel Grove so as to have revenge with her first plan forcing Adam and the others to miss their graduation ceremony. After some time, the Green Ranger passed his powers to Carlos Vallerte, a member of a soccer team that he coached, so that he could attend college along with the rest of his teammates.
Always a ChanceDuring a battle, Carlos (now the Black Ranger) accidentally hurt his teammate, Cassie Chan, when a monster switched places with her as he was attacking. This deeply affected him and he decided to quit his life as a ranger. In an attempt to get Carlos’ confidence back, Adam arrived to train him both physically and mentally. Adam revealed to Alpha 6, who was also aiding him, that he still had his heavily damaged Mastodon Power Coin. Alpha warned him not to morph with it since its link to the Morphing Grid had been destroyed and it had become highly unstable. Upon being attacked by the monster, Adam was forced to try morphing, which worked but his morphed form kept flickering in and out and it weakened him terribly. Seeing Adam take such a risk renewed Carlos’ confidence and he became a better ranger.
Once a Ranger, Parts 1 and 2A couple of years later, Adam now as an adult returned to his life as a Power Ranger after receiving a call from the Sentinel Knight to help protect the jewels of the Corona Aurora. The Overdrive Rangers had lost their powers thanks to Thrax’s evil alliance and a new team of Power Rangers was needed. Adam’s powers as the Black Mighty Morphin’ Ranger were restored and he led a team consisting of Xander Bly, the Green Mystic Ranger, Bridge Carson, the Red S.P.D. Ranger, Kira Ford, the Yellow Dino Ranger, and Tori Hanson, the Blue Ninja Ranger, to battle Thrax’s alliance. Adam later brought back Alpha 6 to fix the Overdrive Rangers' link to the Morphing Grid, which succeeded. With their powers restored, the Overdrive Rangers, Adam, and the other veteran rangers went to take on Thrax and his alliance in one final battle. They emerged victorious and Adam returned to the dojo that he had started running. It is implied that the powers of him and the other Rangers chosen by the Sentinel Knight stayed in intact.
Adam returned as a Zeo Ranger with Rocky, Tanya, and Kat, as part of the army of Legendary Rangers, led by Tommy as the Green Mighty Morphin Power Ranger, that helped the Mega Rangers defeat the Armada once and for all, fighting in a huge battle against hundreds of X Borgs and dozens of Bruisers.