Michael Lanyard (Warren William), the Lone Wolf, agrees to go to Alexandria to help the Allied cause during World War II. There, he and his valet, Llewellyn Jamison (Eric Blore), are met by his old friend, nightclub owner Johnny Booth (Sheldon Leonard). When King returns to her hotel room, Karl is waiting for her. She is one of his agents, currently extracting information from Donald for their real goal: the plans for the minefields and defences of the Suez Canal.