As Deputy Detective Inspector "Ørnen" is to fly to his dying mom on Iceland, he's called off the plane to take charge of the investigation in Copenhagen Airport of a murdered cop with a gun and ID missing. Are terrorists hijacking a plane?
After killing 3 cops and a criminal, Sergey escape to Sweden with Mr. Luka, also Russian. The Swedish police and "Ørnen" with his new team of int'l criminal investigators look for them while investigating the dead cop's relation to Sergey.
After hovering between life and death, Hallgrim survives a knife attack. He and the team locate the perpetrator who is fighting to control the Balkan drug trade in Scandinavia.
The trail of murders, including the crown witness, shows Hallgrim that he is getting dangerously close to Sergei. The team discover some mysterious powder.
When a wealthy Norwegian businesswoman is found dead outside Hallgrim's hotel, the team is led once more to Sergei and an intricate money-laundering scheme.
In trying to find the truth about a batch of uranium that was seized by the Danish police, Hallgrim befriends a Chechen scientist in Oslo who has a sinister mission in life.
Codename: Calypso - a young woman is murdered and the team investigates a cocaine distribution ring out of South America. Hallgrim rents a house from a beautiful woman.
Hallgrim and team work to discover the identity of "Groom" who is the main suspect of the child's murder. When it is discovered that his wife is attached to a child rescue program more questions arise about the child pornography ring.