Barbara Bohrer

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.

An alien from planet Davanna, whose population has developed a terminal blood disease caused by nuclear radiation, is sent to Earth to acquire fresh human blood for his people.