One year on, a heavily pregnant Lucy is three days overdue with their first baby when they find themselves mistakenly caught up in a robbery at the local department store along with Lee's dad Frank dressed asSanta's elf, uber-ditzy friend Daisy, and neighbours Toby and Anna.
Locked in and faced with a dangerous robber wearing a Father Christmas latex mask, they need to come up with an escape plan before things take a turn for the worse.