When nuclear destruction threatens the lives of Jude and his classmates, an extraterrestrial named Spee beams them aboard his roomy space vessel. After "rescuing" them, Spee performs experiments on them and creates Wormboy. Encouraged by his scientific success, Spee plans to use Wormboy to win back favor with his home world, but the exiled alien's plans could be foiled by an arch nemesis, an ex-girlfriend, or even by Wormboy, himself?