A giant cockroach called The Pest is at large in Jellystone Town with plans to rule the world. Atom Ant ends up losing his Atomic Helmet which Snagglepuss mistakes for a pinkie ring. With it, Snagglepuss becomes a superhero. Atom Ant ends up seeking help from the other L.A.F. Squad members to find his Atomic Helmet before the Pest conquers the world.