Lee and Lucy think they have bought the perfect Christmas present for seven-year old Charlie and five-year-old twins Benji and Molly. However, their pride in their parenting is short-lived when the youngsters' grandparents buy exactly the same gift and beat them to the punch by handing it over on Christmas Eve. Lee ventures into the streets on the night before Christmas and faces a desperate race against time to find a suitable replacement. Lee Mack and Sally Bretton star in a festive episode of the sitcom.