When the police seize a consignment of enriched uranium, Hallgrim makes a deal with Sergei in order to discover its planned destination. Meanwhile, Frandsen's life hangs in the balance as he is checked for radiation sickness.

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. 

Hallgrim and Marie attend a conference in Sweden where they locate the person behind the Lithuanian sex trade. A price is put on Hallgrim's head, and someone comes to collect.