The Incredible Rockhead and the Spectacular Scissorlegz team up to tackle a task far greater than either has ever known! Their mission: to seek out and defeat the man behind countless evil experiments, the mutant-making General himself. Upon arriving at his secret headquarters, the duo finds dozens of teenage mutants locked up like twisted science experiments — and some of them aren't happy to have visitors. Unable to tell friend from foe, the two superheroes will have to fight through the ranks of the General's minions, and make some mutant friends, to have any chance at defeating their sinister creator.