Lee and Lucy pop out on a last-minute Christmas Eve mission, leaving their youngsters in the apparently capable hands of Geoffrey - cutting more of a strict and stuffy Victorian gent than usual - and wife Wendy. Alas, things don't quite go to plan for the outward-bound duo, as a theft and unexpected trip into deep countryside await. Not only that, but there are encounters with an aggressive bull in a field and a terrifying truck driver to endure. Meanwhile, back at home, Lee's lovably feckless father Frank turns up to offer gifts - in his own inimitably festive way.