In a distant postapocalyptic future on the war-torn world of Terrana, which may or may not be Earth, 15-year-old adventurous teenage boy Jack, who lost his parents in the war, is looking for a weapon master to teach him how to fight, so he can defend his people from their enemies. He runs into a unit of tanks and befriends the soldiers, but none of them is taking him seriously, especially after an old medicine man predicts that he might be the Chosen One, who is prophesied to bring peace to the world. Villainous King Renard's forces attack and Jack ends up lost in the Dark Forest, which no one dares enter. He stumbles upon an ancient high tech device and activates it. It turns out to be an artificial intelligence of some kind called Xyber 9, the last remaining prototype of its kind, that evil overlord Machestro, whom Renard is working for, wants.