The film begins with "Capt. Briggs" (Arthur Margetson) informing Captain "Morehead" (Clifford McLaglen) that he’s taken his girlfriend “Sarah” (Shirley Grey) as his wife, also requesting to borrow a crew member for assistance. He's met with immediate agreement and they set sail. It doesn't take long before it becomes apparent that the danger isn’t solely from the surrounding environment; when a shot rings out toward …