The source of the pollution is found up on the mountain. Barrels with PCB have been dumped near the water and one of them has been leaking. Andri and Hinrika wonder if there is a connection between the pollution and the murders. For Andri’s daughter, Thorhildur, it is not safe to stay in town anymore. Her aunt, Laufey, drives her to Reykjavík – but the two run into danger, even on the highway.