Following Noel and Sue Radford and their children during the festive period, which might be the last one as a family of 22 with Daniel planning to move to Australia in the new year, but sibling rivalry leaves the clan at war with one another. Sue and Noel attempt to bring them back together with a variety of incentives including a surprise party at the bakery, a present reward chart (that goes horribly wrong), and team-building fun at the Christmas markets.

Noel and Sue Radford make the biggest decision of their lives and decide to search for another house, but the older children soon realise there are more of them than there are rooms. So, who stays, and who goes? Meanwhile, Ellie is subjected to cruel online trolling during her 18th birthday celebrations, leading to Sue finding a way to boost her flailing confidence.