A member of the French 28th Pursuit Squadron, Sergeant Dalez quickly catches the messages dropped by a French spy from a Heinkel spy plane. Captain Loop Logan asks Dalez if he was related to Hans Himler, a man of fleet foot whom Logan had encountered before. Dalez denies any connection.
Major Dorsay sends Captain Logan to lead the ‘A’ flight of Curtis Hawk fighter plane to the spot on the message, which indicates a Nazi bomber will be found. When the flight reaches the area, they are ambushed by a group of Messerschmidts, leaving only Captain Logan alive.
Returning to base, Loop sees another spy plane. Dalez catches the message it drops, but when Loop demands that Dalez hand over the actual message, he attacks Loop. Loop bests him, unmasking Dalez’s true identity as a spy named Hans Himler.