"The most amazing saga in the fighting annals of the US Navy!"
The crew of the American destroyer escort, the USS Haynes, detects a German U-Boat—resulting in a prolonged, deadly battle of wits.
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Robert Mitchum
Capt. Murrell
Curd Jürgens
Kapitän von Stolberg
David Hedison
Lt. Ware
Theodore Bikel
Heinie Schwaffer
Russell Collins
Doctor
Kurt Kreuger
Von Holem (uncredited)
Frank Albertson
Lt. J.G. Crain
Biff Elliot
Quartermaster
Michael McHale
German Soldier
Alan Dexter
Lt. Mackeson (uncredited)