Testifying against a corrupt colleague, police detective Nikolai Andreassen stands against corruption. But when a possible murder in his home town involves his own family, he is faced with a major dilemma and breaks the law to protect his brother.
Nikolai tries to cover up his brother’s involvement in the case, but Anniken suspects that there is more to it than meets the eye and continues her investigation. Nikolai discovers that Lars has lied and that his father is also linked to the case.
Things escalate as Nikolai continues to play both sides and tries to destroy Anniken’s investigation. He gets an old friend to lie for him, but Lars is put at great risk as he tries to cover his tracks. And what has happened to Ove, the key witness who can identify Lars?
As Anniken closes in on Ove, Bengt and Nikolai try to direct his escape. Divers search the river while forensic experts comb through Ove’s houseboat.
Ove’s girlfriend visits the station to speak with Anniken. Nikolai decides to lie to keep Lars out of the investigation so plans to get him away, Fearing that more lives are in danger, Nikolai realises that Bengt must be stopped so goes on the offensive with a risky plan, but Bengt strikes back hard…
The drug dealers capture Bengt, resulting in an unexpected turn of events. Lars confesses when Anniken arrests him for murder. Nikolai is given a new piece of evidence but can’t take any more risks so withdraws his testimony against corrupt colleague Lindberg.
Eva asks Josef to do one last drug run from Sweden to pay his debt to her. Monitoring phone activity for coded texts, Nikolai prepares to make a bust, but when he realises that his enemy is involved with the Swedish mafia he goes too far, and is forced to review his own moral choices.
Eva decides to get rid of all loose ends linked to her drug operations. Nikolai learns the whole truth about his father’s connection to Tommy’s death.