The crew of the American destroyer escort, the USS Haynes, detects a German U-Boat—resulting in a prolonged, deadly battle of wits.

Eddie Darrow, seeking a mobster’s widow in Macao, gets involved in a casino owner’s affairs.

On the eve of their return to the states, the crew of the U.S.S. Blake is unpleasantly surprised when their new captain, Lt. Commander Hale, announces that they’ve been reassigned…