Schoolteacher William Potts is the double of a captured German spy, so he is sent to Germany by British Intelligence to obtain the plans of a new secret weapon, causing chaos in a Hitler Youth school in the process.
Director: Basil Dearden, Will Hay
Screenplay: Angus MacPhail, John Dighton
Producer: Michael Balcon
Director of Photography: Ernest Palmer
William Potts / Muller
Professor Hoffman
General Von Glotz
Max
Kurt
Krauss
Hans
Lena