Asgeir and Ragna get entangled in a web of radical right-wing groups and followers - sending them on a journey from the fjords of Norway to a Berlin preparing for Germany's election.
Asgeir is in Lofoten, chasing down a money trail to try and catch Ziminov. Ellen is on a leave of absence, at home taking care of her elderly father. But she is restless and impatient to get back to work in the PST.
Ellen goes undercover again to get to the infamous Mateusz Krajewski, while Asgeir and Ziminov get in trouble at the border. In Norway, Tarje faces a difficult situation where his loyalties are torn between his sister and his best friend.
Ellen has taken Krajewski and his wife as hostages, and they are heading to the -station in Warsaw. While Asgeir and Tereza must break into a heavily guarded warehouse in search of evidence.
Poland is in turmoil and the European democracy is in danger. Ellen goes to find Sikora and stop the terror attack, while Asgeir seeks help from Chief, unaware that Michelle's life is in danger.
