

12/01/1971
The U.S. submarine Anthony Wayne is underway for a top-secret mission. Onboard is a highly classified device that will give the Americans a decided nuclear advantage. The entire mission and the secret technology are threatened when the sub commander discovers his crew has been infiltrated by enemy agents. The commander is charged with trying to protect the device while ferreting out the enemy agents. Compounding matters is the state of the commander's physical and mental condition, which is being questioned by his crew.

Joseph Cotten
as Admiral

Lloyd Haynes
as Lt. Dave Burston

Dewey Martin
as Skip Langley

Leonard Nimoy
as Comdr. Phil Kettenring

William Windom
as Capt. Frank Reardon

Keenan Wynn
as Orville Kelly

Malachi Throne
as Dr. Dykers

Sam Elliott
as Ens. William 'Bill' Sandover

Ivor Barry
as Donald Ellington

Ron Masak
as CPO Corky Schmidt

Gordon Hoban
as Second Karp (False Karp)

Lee Stanley
as Lt. Manners

David Thorpe
as Lt. Benson

Henry Olek
as Cab Driver

Dale Tarter
as Clarence W. "CW" Karp (First Karp)

James Beach
as Radar Operator

John Winston
as English Scientist

Larry McCormick
as Radio Operator

Paul Sears
as Paine

Ellen Tucker
as Mrs. Karp

Bill Keller
as Shore Patrolman

Bobby Herbeck
as Sonarman

Bo Johnson
as Seaman
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