In Oslo, a bomb devastated a restaurant run by Hamit Milonkovic, a gang member of the Z. Her daughter Zana, locked up by him in the building during the explosion, managed to escape. Via Internet chat, the girl comes into contact with the killer of the sandpit. In the forest, Henning realizes that the murder weapon is visible at the bottom of the water hole where he threw it.

The new head of the crime squad travels to Mysen to learn about the latest progress of the investigation. According to Helen Zana's death has no connection with the investigation. Philip requests to change adoptive parents because Henning has completely rejected him since he confessed the truth.