The crew of the American destroyer escort, the USS Haynes, detects a German U-Boat—resulting in a prolonged, deadly battle of wits.
Not streaming on a subscription service in the US right now.
Starring Robert Mitchum, Curd Jürgens, David Hedison, Theodore Bikel, Russell Collins, Kurt Kreuger, Frank Albertson, Biff Elliot, Michael McHale, Alan Dexter