A professor teaching at a correspondence school discovers that a Nazi agent is trying to prevent a trade treaty being signed between England and South America.
Length 80 minutes
Will Hay | John Mills | Basil Sydney | Felix Aylmer | Thora Hird | Henry Hewitt | Owen Reynolds | Frank Cellier | Joss Ambler | Frank Allenby | Margaret Halstan | Barbara Valerie | Leslie Mitchell | George Woodbridge | George Merritt | Aubrey Mallalieu | Diana Beaumont | John Boxer | Cyril Chamberlain | Richard George | Kenneth Griffith | Dorothy Hamilton | Roddy Hughes | Katie Johnson | Agnes Lauchlan | Brefni O'Rorke | Marjorie Rhodes | Ronald Shiner