A futuristic underwater sea-lab is having problems with a UFO that's parked between them and a nearby deep ocean trench. As they investigate, they attract the unwanted attention of a dangerous creature who puts the scientists and crew in danger.

Genres

Cast

Scott Brady

Commander Wayne

Sheree North

Dr. Rene Peron

Gary Merrill

Dr. LaSatier

John Howard

Dr. James

Wende Wagner

Sandra Welles

Mike Road

Hugh Maddox

William Thourlby

Tex

Biff Elliot

Dr. Wilson

Roy Barcroft

Skipper

James Hong

Ho Lee