Uncle George has become engaged to a young waitress and Aunt Agatha wants Bertie to offer her a hundred pounds to end the scandalous engagement, but Jeeves has other plans. Then it's off to Twing Hall where Lady Wickhammersley has banned gambling due to an unfortunately incident in which Lord Wickhammersley lost the East Wing with a bad hand. So Bertie, Bingo, and Jeeves start gambling on events in the village fair, such as the Boys and Girls Mixed Animal Potato Race and the Mothers Sack Race.
