Charters and Caldicott are touring the Center East. After visiting Saudi Arabia they discover themselves in Bagdad the place they're mistaken by a gaggle of German spies for the messengers who're to hold a track report by stunning singer La Palermo which incorporates secret directions of the German Intelligence. Realizing their error, the German spies observe Charters and Caldicott to Istanbul and Budapest, making an attempt to get rid of them and retrieve the report.
