Captain Manson, an oil-tanker captain, saves Kathie Hall from a U-boat attack and later marries her. When his own ship is sunk and Kathie is accused of being a suspect due to her lack of identification, Manson sets out to clear her name and uncovers a shocking truth: his trusted first mate, Adamson, is secretly a German spy.
Tampico
A captain's trust is shattered when he uncovers evidence suggesting his wife is a Nazi spy, using her knowledge of Allied ship movements to aid the enemy.