18 episodes

Klassen - Season 21

First aired Aug 11, 2026Season 21

Browse all 18 episodes in this season, including available images, air dates, runtimes, ratings and episode summaries from TMDB.

Episodes

The Gossip Wall still

Episode 1

The Gossip Wall

NR
Aug 11, 202610 min

Summer vacation is over, and a new school year is kicking off in the class. But the first day of school after vacation isn’t without its drama, of course - because someone has covered an entire wall with rumors, secrets, and gossip about everyone in the class. Who’s behind it?

What if it's true? still

Episode 2

What if it's true?

NR
Aug 12, 202610 min

Jonas and Sylvester are blamed for creating the gossip wall, and Michael forces them to clean it off. But what should Jonas do if what’s written on the wall is actually true - that Lily has a crush on him?

Uma's Glow-Up still

Episode 3

Uma's Glow-Up

NR
Aug 18, 20269 min

Uma's best friends Axel and Buster are blown away by her new style, which is suddenly much more feminine. What happened during the summer holidays?

Embarrassing Per still

Episode 4

Embarrassing Per

NR
Aug 19, 202611 min

Per has his first day in class. At his previous school he was labeled an outsider. That's why he tries his best to avoid being associated with the nerds, but will he succeed in becoming part of the popular boys?

Drama in Roblox still

Episode 5

Drama in Roblox

NR
Aug 25, 20269 min

Winston is the best gamer in the class. But his position is threatened when Carlo discovers that there’s an unknown player on the class server who’s just as skilled - and maybe even… better? Winston MUST find out who this unknown gamer is!

In Love with a Teacher still

Episode 6

In Love with a Teacher

NR
Aug 26, 202610 min

Madison is completely and utterly done with guys! That is, until a new, young, and handsome teaching assistant shows up at school. Can Maddi win him over?

Kaya Returns still

Episode 7

Kaya Returns

NR
Sep 1, 20269 min

Kaya has been away from class, and Liv misses her very much. That’s why Liv is happy when Kaya suddenly returns. But when Liv pretends that nothing has happened, in an effort to make things easier for Kaya, Kaya ends up feeling ignored instead.

Last one chosen still

Episode 8

Last one chosen

NR
Sep 2, 20268 min

Per is afraid of being picked last when it's time to divide up teams for gym class. But AK and Cille have come up with their own rules that make gym class... fun?

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Episode 9

Secrets

NR
Sep 8, 202610 min

Axel and Buster want to impress Uma, so they suggest playing "Pandora's Box." Uma also has something she's kept to herself for a long time, and she'd like to share it with the boys.

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Episode 10

An Invisible Prank

NR
Sep 9, 20268 min

Carlo shows up at school, even though he had actually told his friends he was going to a summer house. Winston and Marcus therefore decide to play a prank on him by pretending he isn't there. At first it's fun, but eventually Winston takes it too far.

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Episode 11

Mikkel's Little Lies

NR
Sep 15, 20269 min

Mikkel tends to exaggerate a little. I wonder if all his lies will one day get him into real trouble?

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Episode 12

Cille is moving

NR
Sep 16, 20269 min

Cille and A.K. have always lived in the same building, but Cille has been told she has to move. How on earth is she going to break the news to A.K.?

Nature therapy? still

Episode 13

Nature therapy?

NR
Sep 22, 202610 min

The class needs to get out into nature a bit. Michael is organizing an activity for the class that might help Uma reconnect with her former best friends, Buster and Axel.

Winston's Looksmaxxing still

Episode 14

Winston's Looksmaxxing

NR
Sep 23, 20268 min

Winston and Marcus start working on their looks, and when Liv and Sia invite them to a girls’ night, they think their efforts have already paid off and that the girls are crazy about their looks! But are they really?

Buster vs. Axel still

Episode 15

Buster vs. Axel

NR
Sep 29, 20268 min

Buster and Axel are still competing against each other for Uma's attention. Who will win?

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Episode 16

AI Drama

NR
Sep 30, 202610 min

Jonas gets back at Madison, who blames him for the gossip wall. He tricks Per into making an AI video, but it goes completely wrong! What will the consequences be?

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Episode 17

The Lie About Confirmation

NR
Oct 6, 202610 min

Kaya is going to lie to the rest of the class and say she's planning a wild party for her confirmation. The truth is, she isn't even getting confirmed, and Winston is going to expose her lie.

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Episode 18

Can Jonas win Lily over?

NR
Oct 7, 202610 min

Jonas has been checking out Lily for a long time. Sylle has found a guidebook that has all the right advice on how Jonas can win Lily over!