Caught during a drug raid where his big brother is shot and killed, Robin spends several years in prison. After being released, he dreams of starting a new life, but is forced back to the gang.

The gang begin to look more closely at what the police are doing in Oslo and investigate Deputy Leader Tom Karlsen for corruption. A case turns out to be far more complicated than expected.

After the special unit drop the case against Tom Karlsen, Robin and the rest of the gang must work harder to trap him, but Tom has dangerous friends.

Erica is kidnapped and the gang must pay a large ransom to get her released. They're concerned they won't be able to come up with so much money in such a short time.

Erica may be safe, but the gang are under heavy pressure from the police and threatened with dissolution. They finally reach a breakthrough in the investigation with the help of a lawyer.

Gang leader Peter Lindquist is released from prison, and Robin is commissioned by the police to keep an eye on him. New information comes to light.

Robin discovers what really happened to his brother, and goes to his father. Tom wakes up the day after the attack and warns the police chief about Kris.

The gang continue their investigation in Robin's absence and make a surprising discovery, forcing the Chief to make a drastic decision.