Fernando, a guy from Värmland, fears that his best friend is in danger. He chooses to travel to Stockholm in order to save him.
The police station is locked down. A snitch is compromised. Drastic and unexpected events take place. Both inside and outside the police station.
When a well-known crime boss is murdered by a sniper in front of his family, Beck and his team are challenged to discover which one of his many enemies could be responsible for the crime.
The Detective Brothers find themselves with the looming threat of being evicted as they can't pay their rent. Only one chance to right the wrongs presents itself: A special case which makes the Brothers ask: "Who's seen Santa Claus?"