The Japan One-Ton Truck Race Challenge continues! Racing through the forbidden confines of the Deep-Rad Zone, Camshaft and the R.P.M. pit crew must battle to win the race while keeping the evil SCORPION organization from destroying their Mechs! Meanwhile, on a forbidden island, Turbo and Prop are about to recover another treasure trove of ancient alien technology. But will they survive the island's guardian to claim their prize?!