

26/06/1973
When an underwater ocean lab is lost in a earthquake, an advanced submarine is sent down to find it and encounters terrible danger.

Ben Gazzara
as Cmdr. Adrian Blake

Walter Pidgeon
as Dr. Samuel Andrews

Ernest Borgnine
as Chief Diver Don MacKay

Yvette Mimieux
as Dr. Leah Jansen

Donnelly Rhodes
as Diver Bob Cousins

Chris Wiggins
as Capt. Williams

Michael J. Reynolds
as Dr. Hal Hamilton

Mark Walker
as Diver Dave Moulton

Leslie Carlson
as Brigs, Triton Radioman

Stuart Gillard
as Diver Phil Bradley

Ed McGibbon
as Dr. Norton Shepherd

David Renton
as Warrant Officer

Joan Gregson
as Dobson

David Yorston
as Diver Stephens

Ken Pogue
as Diver Thomas

Dave Mann
as Hawkes

Frank Perry
as Sub Captain

Kei Fujiwara
as Kay, lab technician

Dan MacDonald
as Lt. Hobbs, Halifax day officer

Richard Whelan
as Radio Officer
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