Amanda and Alex have a fling going on as they find out that their parents are getting a divorce. To complicate things, Amanda's father has met a new woman and that woman is... Alex's mother.

The Hedenhös family time-travels and ends up in a museum in Stockholm in 2013. They explore the modern world and try to find a way to get back home.

Simon Lindström, the popular coach of a suburban junior hockey team is found stabbed to death. Does the murder have something to do with his side project: teaching unaccompanied refugee children to ice skate? This undertaking has certainly not been appreciated by everyone in their small, sheltered community. Martin Beck, who has returned in a more senior position, struggles to find a replacement for the temporary head of the group, Steinar Hovland. But the Norwegian is becoming more and more interested in keeping his new role. The question is whether Martin can trust him?