White Mice centres around a spoof investigation of Del Boy by the BBC Breakfast show, Breakfast Time, over allegations that he sold white mice to a customer with the promise that they would turn into horses at midnight. It sees the BBC's consumer expert, Lynn Faulds Wood (playing herself) attempting to quiz Del for misleading Mr Buttons, described by Del as a "wally in a funny hat", about some mice he had sold him with the promise that they would turn into horses. After failing to persuade her to go out with him for a curry, Del quickly leaves