Arvid Bergelv

Lasse and Maja have had their detective agency shut down by the police chief when a customer ask for help to prove her father is innocent of the train robbery he was convicted of. Lasse and Maja now see their great chance to show off.

Leila is the girl that everyone is in love with. Bert is in the same class as Amira, the little sister to Leila, and he sees his opportunity to approach Leila through friendship with Amira.

Bert has just turned 14 and he just got dumped by his girlfriend. He decides to try to find love again but encounters different obstacles, such as hot guitar guys, embarrassing parents and sudden pimple outbreaks.