What happens when the old gang of girls who run everything feel threatened by the new cool kids who have just joined the class?

What happens to the friendship when Nils' best childhood friend Alexander hangs out more and more with others who think NIls is too sensitive?

What happens when Estelle sees something going on between Olivia and Edvin? Can Alice's attempt to put Olivia in her place work?

Charlie tries to be friends with Heaven, but just when it seems like he's got Heaven's interest, he gets caught up in something and misses out on her. Has he blown his chance now?

Benjamin recognizes Lea but she asks him to leave her alone. Why does she get angry and what is she hiding?

There are too many ball games at the sports center, and Aisha is tired of the boys just passing to each other. The girls ally and confront Gurkan. Will the boys be as tough next time?

Molly and Rufus are annoyed by the gang at school and have brought along a poop-smelling spray that will come in handy to disrupt them. Who will be blamed when the fire alarms go off and everyone has to leave school?

Vincent opens up to Tilde about his feelings for his online friend. Tilde advises him to be straightforward and honest, but will it turn out the way Vincent wants?

Issam and Alexander decide to use AI to write the difficult essay for their next assignment. Will the teacher discover that the boys have cheated?

It's Heaven's birthday and she shows Charlie a sweater she wants, a very special one. It's an impossible present, right?

Tilde wonders what it's like to kiss. Meja, who has experience, answers many questions, but it is Molly who comes up with new ideas on how to practice. Will Molly solve the kissing riddle?

Meja and Estelle are convinced that Olivia and Nadja are the ones who stole Meja's jacket. Benjamin is upset by the false accusations and gets into an argument with Estelle. Who has taken Meja's jacket?

Nils finds out that Alexander has been lying to him and irritation grows between them. Eventually, Alexander crosses the line, again. Nils is sad and talks to Josef who gives him good advice. How much can an old friendship take?

An account pops up to vote for the prettiest girl in school and Alice is one of the candidates. Heaven is very upset and thinks it's sexist, so she turns to Joseph to help her find out who's behind it. But who is it that has started the account?

Tilde has realized that Vincent is her online friend, but does Vincent understand how she feels?

Jack and Alexander talk about pubescent things and are annoyed with Rufus who takes offense. He tries to pretend to be in the target break and hang out with the guys while distancing himself from Molly, but is he having as much fun with the guys?

Estelle is bothered to death by Olivia who is also dating Edvin. Estelle manipulates Edvin to find out if he still has feelings for her. He seems to and Nadja happens to see it.

Tilde doesn't want to know about Vincent and he doesn't understand anything and is totally confused. Who is Vincent's online friend and who is he really in love with?

Alexander's old soccer shoes are so broken that he has to tape them to play and his mother can't afford to buy new ones. Edvin, on the other hand, has a new pair of soccer shoes that haven't even hit the market yet. What will happen to Alexander when he is selected for the team?

Estelle is sad that her parents are getting divorced and confides in Lea. She says that Lea is the only one she can trust. Lea feels like a fake but doesn't dare tell her her secret. Benjamin and Lea meet after school and have a lot of fun together but then Estelle shows up with Meja and Alice and Benjamin happen to be upset.

Edvin and Heaven get into an argument about designer clothes and Heaven crosses the line. Edvin gets angry and decides to fight back. The power struggle is on between them and it seems that neither of them is ready to give up at first.

Meja persuades Aisha to try putting on make-up, but Aisha feels uncomfortable with it. When some boys in the ninth grade start whistling at her, she has had enough and becomes very angry and provoked.

Molly loses a challenge to Rufus and is forced to set up a date with someone. They draw lots to decide who, and it's Nils who takes the date seriously. What does Nils say when he realizes it was all a joke?

Life in a secondary school classroom. Lots of drama is promised in the new season of Klassen as two schools merge to become one. What happens to friendship, identity, hierarchies, love and social status when a bunch of new students join?

Nadja has a bad day and loses it completely when Rufus accidentally rides his bike over her shirt. Nadja is furious at everything that happens around her and takes revenge on Rufus. Can all the misunderstandings be cleared up after everything that has happened between them?

When Molly and Charlie start talking about how hard it is to go back and forth between their divorced parents, it becomes too much for Joseph. When Nils keeps asking Joseph how he's doing, Joseph confides in him and tells him that his parents are getting a divorce.

Estelle has great difficulty writing and Tilde helps her. The new teacher Vendela points out that Estelle probably has dyslexia, but Estelle goes crazy. Can Tilde make Estelle understand that it's a common problem?

Tilde wonders if Charlie and Heaven are really just friends or if there is something more between them. Heaven is surprised and wonders what the difference between friendship and love is. Charlie has noticed that Heaven has stopped eating lunch with the others in the dining hall and hardly sees her eat anything at all anymore. Is Heaven really as strong as she seems?

Aisha's stomach hurts a lot and it turns out she has her period. Lea gets her a pad and new panties with Molly's help. Aisha finds it hard to talk about her period, but the others agree that it's something to celebrate.

Edvin wants to join the secret society, but first he has to pass the entrance exams. He's going to hang out with Molly and Rufus who, on this particular day, have decided to dress up as emos, which Edvin has to do and pretend he's doing it because he wants to. Will he ruin his chance to be elected to the society?