1915: The world is at war but the United States is officially neutral for the time being. President Wilson sends a young Army officer, Captain Alexander Armstrong, to assist British Intelligence in Egypt. The Turks aided by German military advisors are launching attacks against the Suez Canal, Britain's lifeline in the East. But Captain Armstrong is unprepared for intrigue when he is mistaken by the Turks for a German spy. His mission is to infiltrate British HQ to arrange the destruction of the Canal. The Turks furnish him with a cover to pose as an American officer expected by the British. He must assume the identity of - Captain Alexander Armstrong!