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.
Eddie Albert
as Adm. Wiley Sloan
John Carradine
as Ronald Bentley
Alex Cord
as Dr. Sam Marlowe
Robert Forster
as Comdr. Jeff Selkirk
Frank Gorshin
as Dan Wesker
Mark Harmon
as Peter Cabot
Christopher Lee
as John McKenzie
Tom Dunstan
as Agra Worker
Bruce Heighley
as Technician
Robert Paul Jordan
as (voice)
John Berwick
as Crewman
Laurence Haddon
as Cpt. Volero (uncredited)
