Storyline:
During World War II, the USS Haynes, an American destroyer escort discovers a German U-boat in the South Atlantic. A deadly duel between the two ships ensues, and Captain Murrell must draw upon all his experience to defeat the equally experienced German commander.

Cast:
Robert Mitchum (as Capt. Murrell), Curd Jürgens (as Von Stolberg), David Hedison (as Lt. Ware), Theodore Bikel (as 'Heinie' Schwaffer), Frank Albertson (as Lt. Crain)