In a world devastated by a wide-scale nuclear war, all that remains are teetering ruins and a handful of scrappy survivors. The group includes a weathered rancher (Paul Birch), his lovely daughter (Lori Nelson), a tough gangster (Touch Connors), his mouthy woman (Adele Jergens) and a shaken geologist (Richard Denning). This motley crew faces internal and external conflicts as they traverse the treacherous land. Along the way, they are forced to confront a mutated human monster (Paul Blaisdell).