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.
When the delivery of presents goes wrong and Grandpa Noël gets in trouble, siblings Jules and Noor must work together to save Christmas.
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.
The thirty-somethings planned a Christmas trip to Lapland months ago, but the journey there is not exactly going smoothly. The app group has fallen silent, Bart and Pieter aren't working well together, Lot is getting sucked deeper and deeper into Boas' trendy group of friends, Nora's heavily pregnant belly is about to burst, no one shows up at Saar's farewell party, and Elias and Alex have completely different expectations of the upcoming reunion. Fortunately, in fairytale Lapland, they get the ultimate chance to mend all the cracks. But Christmas always has its own surprises.
Christmas Eve. Finally, a few days off after the busiest time of the year. For a while, everything revolves around cozy gatherings by the Christmas tree, enjoying a lavish Christmas dinner, unwrapping presents, and eating Christmas cookies. But not for everyone; for the emergency room staff, work never stops. The hospital doesn't have a pause button to relax. On Christmas Eve, the night shift has only just begun for Lily, Ben, Yannick, and Shanti. Even though they're certainly not there for fun, the world outside the hospital walls has little to offer. They've all fled Christmas Eve. To prevent worse from happening.