When the delivery of presents goes wrong and Grandpa Noël gets in trouble, siblings Jules and Noor must work together to save Christmas.
When a series of murders in the run up to Christmas are found to be linked, FBI Special Agent Natalie Parker is tasked with tracking a pair of psychotic serial killers that have based their personas on Santa and Mrs Claus. As Christmas approaches, they slaughter their way through their naughty list, playing a cat and mouse game with the FBI and leaving a trail of bloody bodies in their wake.
Among the 'Oogappels' families, things get pretty stressful this Christmas and it is a feast of recognition. Erik and Chris actually want to skip the holidays for a year. Fabie faces a major disappointment and Carola and Marcel are rocked by a shocking event during Christmas dinner. Tim and Dina's mood also leaves something to be desired, after a Christmas party at Tim's work gets out of hand. The grandparents know exactly what is going on and, as always, make razor-sharp comments: the more we do our best to push away anything complicated or negative, the greater the chances of violent explosions.