Denise, inspired byNigella Lawson, decides to cook Christmas dinner for the family this year. Denise and Dave invite Jim and Barbara over to their house for the day and Dave's parents Jocelyn and Dave Sr. are asked to join them, much to Jim's dismay.

To celebrate their 50th wedding anniversary, Jim and Barbara go to Prestatyn, Denbighshire, Wales, to stay in a holiday caravan, along with Dave and Denise. With no television or chip pan, the holiday is a disaster and they decide to return home early.