A group of 21st-century colonists inhabit an underwater city called Pacifica. Originally intended as a purely scientific installation, the U. S. government wants to stash all its gold reserves from Fort Knox there, along with a fantastic new radioactive element. The brother of Pacifica's returning former commander plans to steal the gold and on top of that, the city faces destruction by an asteroid from outer space!
Cast
Stuart Whitman
Adm. Michael Matthews
Robert Wagner
Brett
Rosemary Forsyth
Lia Holmes
Robert Colbert
Cmdr. Woody Patterson
Burr DeBenning
Aguila
Susana Miranda
Elena
Paul Stewart
Barton
Whit Bissell
Prof. Holmes
Richard Basehart
The President
Joseph Cotten
Dr. Ziegler
James Darren
Dr. Talty
Sugar Ray Robinson
Capt. Hunter
Charles Dierkop
Quinn
Larry Pennell
Bill Holmes
William Bryant
Capt. Lunderson
Robert Dowdell
Young Officer
Edward G. Robinson Jr.
Dr. Burkson
Sheila Allen
Blonde Woman
Tom Drake
Gen. Putnam
Johnny Lee
Tony
Glenna Sergent
Sally
Ray Didsbury
Security Guard
Erik L. Nelson
Triton Controller
Paul Bradley
Scientist (uncredited)
Brent Dunsford
Technician (uncredited)
George Holmes
Scientist (uncredited)
Victor Toyota
Scientist (uncredited)
Crew
Irwin Allen
Director, Story, Producer
John Meredyth Lucas
Screenplay
James Baiotto
Editor
Kenneth Peach
Director of Photography
Sidney Marshall
Associate Producer
George E. Swink
Associate Producer
Paul Zastupnevich
Costume Design
Richard LaSalle
Music, Conductor
James Cane
Set Decoration
Cleo Anton
Script Supervisor
Denny Arnold
Stunts
Stan Jolley
Art Direction
Rodger Maus
Art Direction
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