Martin  is a member of a comedy troupe who is captured by American soldiers when he is in costume as a German officer in this World War II comedy. He escapes and joins the Free French Army only to be captured by the Nazis while he is wearing a general's uniform. The British use him as an undercover agent to capture the Germans. Martin then is recruited in a plot to kill Hitler and is acclaimed as a hero by the resistance movement. His bravery earns him an audition with the coveted Comedie-Francaise troupe.