A group of college students and their professor ventured onto an uninhabited island for a day of exploring flora, fauna and co-ed fun. The class field trip quickly becomes a grisly nightmare as the students and faculty soon discover they are stranded and the island is crawling with ravenous, flesh-eating ghouls, reanimated as Zombies by an insane Nazi scientist who can resurrect and control the dead. Just when the slaughter levels out, a three-headed abomination comes out of hiding that even its creator can't control.