Ma Wilson It's Mr. Wilson's birthday and he's waiting at the train station for his mother who is arriving for the occasion. In order to impress her, with Gordon's help, he's rigged up a false arrest in which some friends of Pierre are to act as gangsters. Due to the train's late arrival, these friends unfortunately leave the station without telling the two Untouchables. Once Ma Wilson arrives and Mr. Wilson is driving the Armstrong 326, he tries to arrest what turn out to be real gangsters who they meet by chance on the road...