It's World War II, and British soldier John Bramble (Franchot Tone) is the lone survivor of a brutal battle in Egypt. After wandering through the desert, Bramble finds a remote hotel. There, in order to stay alive, he assumes a false identity. When the famed German general Rommel (Erich von Stroheim), aka the Desert Fox, arrives at the hotel, Bramble realizes he's being taken for a German spy. Can this lowly British soldier turn the tide in the war and foil Germany's plans in North Africa?