Past and present mysteries are solved. It's the end of summer and Mirko's family is moving again.

The relationship between Mirko's parents is still icy. The owner of the local hair salon, Kari, shares the suspicions of Mirko and his friends. Has history repeated itself in the suburbs?

Mirko wants to show his friends the body in the forest, but it has disappeared. A house party is held at Pete and Heidi's house, where Taina retreats to the bedroom with her crush.

Kaius follows the children's detective club's attempts to find out what has happened to the missing boy.

Mirko's relationship with Olavi deepens; as well as the gap between him and his mother Anne. Kaius tells Mirko that he found the body in the forest.

Heidi and her best friend Taina argue about Mirko. As teenage romance rages, community friendships and marriages begin to fall apart.

While the other friends are vacationing abroad, Mirko befriends Sampsa. Mirko's mother Anne seems to be hiding something from her husband that happened 20 years ago.

Mirko's family is faced with a tragedy when his grandmother dies, but Mirko continues to make friends with the other children.

Mirko stays with his new friend Pete and his sister Heidi. The parents are behaving strangely - they want to keep the secrets away and the kids out of the basement.

Mirko and his family move to his mother's childhood home, Munkkivuori. When he arrives, the entire neighborhood is deeply shaken by the recent disappearance of a little boy.