Kenneth Eriksson hears about a foreign criminal gang planning a jewelry robbery in Finland.

When it comes to prostitution, Eriksson has seen everything. He shares some of his wildest memories from the streets of Helsinki.

When Kenneth hears about a death of someone he knows from the underworld, he gets curious.

Themes in this episode: gang violence and illegal activity in construction business.

Kenneth finds out how violence is dealt with in prisons, as well as who really rules inside the prison walls.

During the investigation of a smuggling case, a drug stash is found. But who do the drugs belong to?