Two sniveling high school dropouts plot to rob the school janitor and accidentally release toxic chemicals into the school's water supply. The swimming team are the first ones to turn into green-faced flesh-eating zombies, and they promptly go after the rest of the present school populace: two horror movie nerds, the members of a metal band and the world's worst basketball team.

Cynical and intelligent Arnold Mosk, a known drug user, is put into a disciplinary program at his high school meant for the seriously disturbed where he becomes the main target of the psychopathic Doug Van Housen and his gang.

.When a happy-go-lucky, but very naive, Gilbert embarks on his daily adventures, he comes across a variety of interesting encounters, opportunities, obstacles, and laughable moments alongside friends, family, and some adversaries