Overview
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 & Crew
Director: Francis D. Lyon
Cast: Scott Brady, Sheree North, Gary Merrill, John Howard, Wende Wagner, Mike Road, William Thourlby, Biff Elliot, Roy Barcroft, James Hong, Glenn Sipes, Richard Niles
