Skipper Matthews is a comic book collector who enjoys reading his favorite comic book, the Masked Mutant. The Masked Mutant is an evil supervillain who can change his molecular form into any solid material. He is constantly opposed by a league of superheroes lead by the Galloping Gazelle, the world's fastest man. Skipper finds the Masked Mutant's headquarters and becomes a comic book character. He must rescue the Galloping Gazelle and save the world by defeating the Masked Mutant.