The battle for Star Rock Mountain

Cactus Kid has exiled himself to the Neverending Desert to master magic and prove to his all-powerful father that he is the best wizard alive. All he needs is a piece of star rock to supercharge his magic, but he's not the only one after it. Caught in the crossfire between rival gangs of the Clams and the Shells, he must compete in the epic and death-defying moto-brawl race to get a single slice of the star rock. Meanwhile, a shadowy lizard figure is scouring the desert. Armed with a mystical compass, this bounty hunter is searching for any magic he can get his hands on.