Turner's story takes place on the island of Lugaru, an unknown number of years after the fall of the Human race; all of the characters in the world of Lugaru are anthropomorphic animals. Turner lives in a small village with his family and friends.
Unbeknownst to Turner, a pack of wolves from a nearby island had killed and eaten all of the prey that lived there, and came to Lugaru to find more food. Not wanting to make the same mistakes as before, they plan to conserve their food supply by enslaving and farming the citizens of the local rabbit kingdom rather than hunting their new food supply to extinction. Afraid for his life, the rabbit king Hickory agreed to this takeover, providing that the wolves do not harm him. To secure the deal, he sent Jack, one of his most loyal servants, to kill the local raiders, since they would be the only real resistance the wolves would encounter. To do this, Jack decides to trick Turner into killing the raiders. Jack manipulates Skipper, a close friend of Turner's, convincing him to leave Turner's village undefended as part of a ploy to spur him into killing the raiders. Jack tells him nothing about the wolves, and assures him that no one will actually be harmed during the attack. He then pays the raiders to kill everyone in the village, including Skipper.
Jack's plan is largely successful. The raiders lure Turner away from the village and attack while he is absent, murdering his entire family and nearly all of his friends. Jack stages his own death during the attack. Turner makes it his mission to avenge the deaths of his loved ones, and begins to systematically kill all of the raiders, unwittingly opening the way for the wolves to conquer Lugaru. However, everything did not go exactly to plan: the raiders decided keep Skipper alive for a ransom. Once most of the raiders have been killed, Turner encounters Skipper in one of the raiders' camps. Skipper tells Turner how Jack manipulated him, which prompts Turner to return to his village and confirm the location of Jack's corpse. After seeing that Jack's body is missing, Turner correctly surmises that Jack had gone to the Rocky Hall (the location of the Rabbit Kingdom's monarchy) after betraying him, and decides to pursue him there.
After Turner reaches the Rocky Hall, one of the guards there informs Turner that Jack has set a bounty on him. However, most of the guards see Turner as a hero and refuse to attack him, instead pretending that they haven't seen him. Grateful, Turner leaves the Hall and goes north to continue pursuing Jack. On the way, Turner encounters and is forced to fight a desperate guard in need of money who had tracked him after he left the hall, a wolf, and five rabbit soldiers Jack had sent to kill him. Despite this, Turner finally tracks Jack down, finding him not far from where the soldiers were defeated. Seeing no reason to continue the charade, Jack explains the entire situation to Turner before being killed by him in single combat.
Having learned the terrible truth, Turner confronts king Hickory about the wolves. Hickory orders his guards to kill Turner, but in light of Hickory's dealings with the wolves, they refuse. With the full support of the king's guard, Turner proceeds to take power in a bloodless coup. He then vows to the other rabbits that he will meet with Ash, the alpha wolf, and if need be, kill him. Hickory, determined to kill turner and reclaim the throne, uses his connections with the wolf pack to send three wolf assassins to try and kill him before he reaches the Alpha. However, Turner manages to defeat the assassins and later finds Hickory hiding in the mountains with two of his most loyal guards. Not knowing the fate of the assassins, Hickory threatens Turner with them, and is shocked when Turner reveals he was able to kill them. Turner confronts Hickory over his cowardice in not even trying to fight against the wolf conquest, angering him, and prompting him to attack. Turner kills Hickory in the ensuing battle and takes his sword.
Bolstered by his recent victories, and growing misanthropic due to his recent struggles, Turner finally reaches the wolves' den and kills every wolf there, including the mothers and children. Ash, the alpha wolf, arrives later. Ash warns that if Turner defeats him it would mean ruin for the rabbits as they would overpopulate, causing famine and civil war without the wolves enforcing the natural order. Turner counters this by stating that if he doesn't kill the wolves, they would just lose control and kill all the rabbits again, starving themselves out, and that a death by his hand would be more honorable. In the ensuing battle, Turner manages to successfully overpower Ash and defeat him. After this he returns to the Rocky Hall, where he is offered the chance to become king, since no one would dare challenge the power of a rabbit who killed an entire wolf pack. Turner declines, feeling that he is not up to governing, and decides wander the island trying to find a new purpose for his life.