After a nuclear attack, an unlikely group of survivors, including a geologist, a crook and his moll, and a prospector, find temporary shelter in the remote-valley home of a survivalist and his beautiful daughter, but soon have to deal with the spread of radioactivity - and its effects on animal life, including humans.
Richard Denning
as Rick
Lori Nelson
as Louise Madison
Paul Birch
as Jim Madison
Mike Connors
as Tony Lamont
Adele Jergens
as Ruby
Raymond Hatton
as Pete
Paul Dubov
as Radek
Jonathan Haze
as Contaminated Man
Paul Blaisdell
as Mutant
Roger Corman
as Nelson - Louise's Fiancée in Framed Photograph (uncredited)
Chet Huntley
as Narrator (voice) (uncredited)
