KlassenSeason 102026 · 15 episodesEpisodes1Secretly in LoveEdvin and Heaven are dating, but Edvin wants to keep it a secret because he's afraid of how everyone will react. Heaven, on the other hand, is tired of lying to Charlie and wants to tell him, but it's not as easy as she thinks.2A Thousand Different FeelingsNils and Lea have started hanging out and have grown close. Benjamin sees what's happening and regrets breaking up with Lea, which leads to a fight with Nils.3Tired all the timeJack practices all the time and can't keep up with school. His best friends are going on their annual guys' weekend, but Jack can't go because of his basketball tournament. Everyone is really excited and talks about nothing but the guys' weekend, and Jack feels left out.4Are you jealous?Edvin avoids Estelle at every turn, but he also doesn't want her to know that he's dating Heaven. When Estelle asks why he never replies when she texts him, Edvin blames it on soccer.5SuspicionsNadja is hiding something in her locker; Tilde wonders what it is, and Nadja freaks out. This raises suspicions - could it be that Nadja has gotten herself into some kind of trouble?6SmellmaxxingRufus has gotten a new, ridiculously expensive perfume. Alexander and Nils are very impressed, and when Rufus also gets some attention from a few girls in ninth grade, Nils wants to smell good too - but how can you spend so much money on a perfume?7ConfusedHeaven has found out that Edvin kept it a secret from her that Estelle had been over for dinner at his place. Edvin tries to explain to Heaven that he doesn’t have any feelings for Estelle, but since Edvin has lied and also wants to keep their relationship a secret, Heaven has a hard time believing him.8It's not fun anymoreJack tells Rufus that his dad pushes him really hard during practice. Rufus wonders why he doesn't speak up, and Jack explains that he's afraid of disappointing his dad.9Total chaosLea is stressed out about school, overwhelmed by her job at her parents' store, and can't handle any more drama with Nils and Benjamin. It's all becoming too much for her. But luckily, she has Estelle.10Different rulesTilde, Lea, and Olivia decide to have a cozy night with a sleepover at Tilde's house. The next day, Lea is acting strangely and avoids the girls. She lies and says she can’t sleep over at Tilde’s, but her lie is exposed. Olivia gets angry and confronts her.11The Gaming ChannelVincent, Nils, and Josef are going to start a gaming channel. Rufus and Issam think it's embarrassing, but the guys don't care and keep brainstorming ways to do something unique.12The Pre-PartyHeaven and Charlie are going to the pre-party together; Charlie is wearing an outfit he designed himself, and Heaven looks just like Estelle. Once they get there, everything goes wrong—the guys make fun of them and are mean. Charlie is furious and confronts Heaven. Why does she put up with Edvin’s behavior?13Typically normalThe class has been assigned the task of making collages in different groups. Jack is quick to take charge and thinks the boys should choose the pictures and the girls who are good at crafts should do the cutting and pasting. Molly and Nadja object, and a conflict arises over what constitutes a “typical, normal girl.”14Double HeartbeatOlivia's dad doesn't allow her to buy an energy drink, but she gets Aisha to go buy one for her. Tilde questions this, but Aisha snaps at her. Olivia has paid for a drink for Aisha, too, and they down them before the test. During class, Aisha starts feeling strange, and Tilde takes her to the school nurse.15The Love PoemEstelle has found out that Edvin is seeing another girl, and she thinks it's Noomi from ninth grade. She tells Lea everything and says they need to come up with a plan to bring Noomi down. Lea responds by telling Estelle she needs to get a grip and thinks Estelle should talk to Edvin instead.Season 1Season 2Season 3Season 4Season 5Season 6Season 7Season 8Season 9