Set between episodes 9 and 10 of the final series, the film finds the family taking their festive spirit far from home and onto a South American cruise to Colombia. Despite best intentions, their plans quickly unravel in a series of chaotic events.

Set between episodes 9 and 10 of the final series, the film finds the family taking their festive spirit far from home and onto a South American cruise to Colombia. Despite best intentions, their plans quickly unravel in a series of chaotic events.