Fourteen-year-old Cosmo Hill longs to escape from the Clarissa Frayne institute for Parentally Challenged Boys. When his chance comes he grabs it, but things go fatally wrong. Cosmo feels his life force ebbing away, sucked out of him by a strange blue parasite . . . until a wisecracking gang of kids bursts in, blast the creature, and save him. They are the Supernaturalists and Cosmo's new life with this unlikely 'family' is about to begin . . .