Tomas discovers a man with gunshot wounds by the mountain during a guided hike, but the man refuses to tell what has happened. Åsa investigates the case together with Tomas.

In the four-degree water of Fjällsjön, young people Lina and Joel paddle out in a canoe. When Lina's father calls to ask them to come ashore, he quickly becomes worried.

Lina and Joel fight for their lives after they are found unconscious in the icy water. Tomas is skeptical about how Markus handled the rescue out on the lake.