Sandra is being courted by a rather upper class boyfriend and she decides that, in order to give herself some credibility, she would be as well to take riding lessons. Her boyfriend, Giles goes fox hunting, and Sandra hopes that he might ask her along too. Beryl comes with her, literally for the ride, but after Sandra's horse end up in a lake, the girls end up buying it to save it from being made into cat food. Unfortunately they cannot afford to keep it. (thetvdb.com)