The hideous zombie Pinhead, terrifies his brother and his estranged wife now inhabiting his former home. When a drop of blood partially resurrects him, all hell breaks loose as Pinhead forces his sister-in-law, formerly his lover, to kill and kill again so he can become whole.

John Heard and Daniel Stern accidently learn of the government's covert subterranean dumping site of radioactive waste that is mutating the underground vagrants, turning them into C.H.U.D.s -- cannibalistic humanoid underground dwellers.

It all began in a sleepy Midwestern community, a place that had never known evil--until now. But years ago, in a stillness beneath the waters, something sinister happened, and now its deadly spawn are emerging from the depths into the light. What are these hungry, mutated creatures after? Any piece of flesh they can get, including human beings!