Action Sci-Fi
When an underwater ocean lab is lost in a earthquake, an advanced submarine is sent down to find it and encounters terrible danger.
Directed by
Daniel Petrie
Written by
Jack DeWitt
Ernest Borgnine
Chief Diver Don MacKay
Mark Walker
Diver Dave Moulton
Ben Gazzara
Cmdr. Adrian Blake
Yvette Mimieux
Dr. Leah Jansen
Donnelly Rhodes
Diver Bob Cousins
Walter Pidgeon
Dr. Samuel Andrews
Chris Wiggins
Capt. Williams
Michael J. Reynolds
Dr. Hal Hamilton
Leslie Carlson
Brigs, Triton Radioman
Kay Fujiwara
Anita, lab technician

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