Testifying against a corrupt colleague, police detective Nikolai Andreassen stands up for the line between right and wrong. But when a possible murder in his home town involves his own family, he is faced with a major dilemma.

Nikolai tries to cover up his brother's involvement in the murder case. But Anniken suspects foul play and keeps investigating. Nikolai discovers Lars has not been entirely truthful and that his father also has a link to the case.

Nikolai's double game on duty escalates as he tries to stall Anniken's investigation. But the attempt to tie up loose ends threatens Lars' life. And what has sheriff Bengt done with Ove, the key witness who can name 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. Realizing he must stop Bengt, Nikolai goes on the offensive, but Bengt strikes back hard.

The drug dealers capture Bengt, resulting in an unexpected turn of events. Lars confesses to the police. Nikolai is given a new piece of evidence.

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.

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.