The supermarket sitcom returns for a festive one-off that sees Gavin invite Julie over for Christmas dinner. She is excited at the prospect of a smooch under the mistletoe - so much so that she turns down an opportunity to head up the Widnes branch of Valco - but things don't turn out quite the way she expected. It's business as usual elsewhere as Lisa showcases her enviable customer-service skills and Colin and Leighton wage war against a group of carol-singing scouts, while a brewing snowstorm threatens everyone's holiday plans.