In a story-line very similar to Raiders of the Lost Ark, American agent Secret Service Agent Rex Bennett (Rod Cameron), along with British reporter Janet Blake (Joan Marsh) and Chief of Police Captain Pierre LaSalle (Duncan Renaldo) attempt to thwart the Nazis from obtaining a sacred Arab religious artifact that will unite all the Arabs and they will serve the Third Reich. In order to do this Nazi agent Baron von Rommler (Lionel Royce) captures and impersonates Sultan Abou Ben Ali (also Lionel Royce), leader of all the Arabs. One of the most action-packed of all the serials and the inspiration for the most-watched film of all time, Raiders of the Lost Ark.