During World War II the passenger liner "Goliath" is sunk by a German submarine. Portions of the ship's hull remain airtight, and some of the passengers and crew survive. Over the decades they build a rigidly regulated society completely isolated from the surface world until, in contemporary times, a diving team begins to explore the wreck.
Adm. Wiley Sloan
Ronald Bentley
Dr. Sam Marlowe
Comdr. Jeff Selkirk
Dan Wesker
Peter Cabot
John McKenzie
Agra Worker
Technician
(voice)
Crewman
Cpt. Volero (uncredited)
Sylvia King
PC18 Officer
Moore
Chief Engineer (uncredited)
Newscaster (uncredited)
Liam
Bailey
Ed Linder (uncredited)
(uncredited)
Eric Whittaker
Lew Bascomb
Luke Crane
Maria (uncredited)
Paul (uncredited)
Hoffman
Gantman (uncredited)
Dave Winter
Sally Crane
Paul Ryker
Old Man
Dr. Goldman
Sen. Oliver Bartholomew
Lea McKenzie
Beth
Carrie (uncredited)
Bill Sweeney
Young Bailey (uncredited)
Robbie Cole (uncredited)
Lambeth Walk Dancer (uncredited)
Sarah Bartholomew
Goliath Captain (uncredited)