14-year old Erik gets sent to live with his older brother, Henry, during the summer as his mother is dying in cancer. Henry starts dating Ewa, who is married to Berra. A few days after Ewa shows up battered and bruised from an altercation with Berra, he is found dead on a nearby parking lot.

Kurt Wallander investigates the disappearance of a father under suspicious circumstances, as events at the local high school appear to be linked to the missing man's daughter, who recently committed suicide.

We get to follow Arne and his friends on their adventures where they encounter different challenges and do their best to solve them together. With their likeable and unique personalities – quirky, kind and brave – they make a perfect group of friends.