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.
Will Hay
William Potts / Muller
Frank Pettingell
Professor Hoffman
Julien Mitchell
General Von Glotz
Charles Hawtrey
Max
Barry Morse
Kurt
Peter Ustinov
Krauss
Peter Croft
Hans
Anne Firth
Lena
