The truth behind Halla and Gisli's bond comes out, resulting in shocking tragedy.
The killer is revealed. Not before he does something drastic.
The town's water is polluted. Andri and Hinrika discover more clues, as does Ásgeir.
Vikingur is arrested for murder. And still, the truth is more complicated.
Andri's daughter becomes more involved in the investigation. Víkingur's ready to snap.
The town gathers for Gisli's funeral. Halla returns to help bury him.
Hammer of Thor have demands. But their kidnapping of the Mayor quickly spirals out of control.
In the wake of Finnur's murder, Andri and Hinrika discover suggestive evidence about some people in town.