Man has finally conquered the ocean. America's first self-contained undersea laboratory is the pride of the nation, and expectations are high for an elaborate undersea mining operation. What wasn't expected was the inhabitants of an undiscovered world.

Genres

Cast

Bradford Dillman

Dobler

Priscilla Barnes

Claire

Daryl Haney

O'Neill

Eb Lottimer

Seaver

Richard Young

Chadwick

Stephen Davies

Fernandez

John Lafayette

Shuttle commander

Roger Corman

Corporate executive (uncredited)