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.

Cast:Scott Brady, Sheree North, Gary Merrill, John Howard, Wende Wagner, Mike Road,

Genre:Thriller, Science Fiction,

country:United States of America,

Production:United Pictures, Harold Goldman Associates, Television Enterprises Corporation,