The locals arrange a night watch group - and Jonas is paired with a mysterious newcomer.

Suspended detective Wisting resorts to desperate measures to prove his innocence, while Internal Affairs puts his police department under intense scrutiny. Benjamin searches for suspects in Linnea's disappearance.

After several months, a bloodstained shoe reopens the investigation.

Line's obsession with the Viggo case leads to a fight with her father. With the press hot on their heels, Wisting and the FBI agents discover more corpses, as pressure mounts to catch the serial killer. FBI agent John makes a mistake that will have grave consequences.

Wisting fights for his career and reputation by conducting his own secret investigation into the Cecilia case. Torunn suspects Linnea is responsible for her own disappearance, but her parents are convinced she is in danger.

Detective William Wisting makes a terrifying discovery: a corpse among the spruces at a Norwegian Christmas tree farm is connected to a wanted American serial killer. Meanwhile, Wisting's daughter Line is writing a news article on their reclusive next-door neighbor, Viggo, who sat dead in front of his TV for three months before being found.

In a plan to shake things up and find out who's hiding what, Marius Borge invites the press in.

Elin's worries about Jonas take a turn for the worse.

Wisting and former colleague Robekk join forces on the Cecilia murder case, but will they figure out who was behind the evidence tampering? When Line uncovers a mysterious videotape connected to her father's case, clues point to Linnea's abduction. Will they manage to save Linnea before she is killed?

Jonas' quiet life is upended with a blackmail threat.