It's December 1st and Magnus' first Christmas with the class. He wants to fit in but realize it's not as easy, with the existing traditions. When Christian doesn't want to share a room with him he tell a lie to split up the existing group.
Magnus and Alberte continue their plan to sign up the class for the competition. Laurits and Frederik is planning a prank to get revenge on Magnus. When their plans are discovered by Ida, they fear she will snitch on them.
Alberte get a confirmation that the class have been selected for the competition. Eager to make Christian and Magnus friends again, she decides that Magnus should present the news to the class.
The clock is ticking, so Magnus and Alberte desperately try to figure out who is behind the evil Santa, so they can avoid that he expose them to the class.
The entire class is working on Christmas decorations for the competition. Magnus' bigger ambitions cause a quarrel between him and Alfred.
Alberte keeps an eye on everyone because of the mysterious video from the Santa. When she see Laurits head off with Viola she warns Ida that her boyfriend may not be as into her as she may think.
Alberte is sure that Laurits is up to something, so she and Magnus follow him to the basement. Just when Alberte confronts him he gets a call from Ida, telling them to get back to the class as fast as possible.
Albert, Ellie and Luna head out to a small farm to get some pictures with cute animals. With the quarrel growing between Ellie and Luna it's not easy for Albert to get them into the Christmas spirit.
It's time for the yearly package game, but Kasper's mother has prepared an embarrassing package, so he decides not to participate and throw out his package. When the game is about to begin his package is suddenly on the table.
Today's challenge in the competition is to post a picture of something sweet, so the class decides they should post a picture of a kiss, the question is who the cute couple should be.
Alberte would like to spend some alone time with Magnus, so she come up with a small lie to get Magnus to come by her house.
Christian is in a predicament cause he hasn't told his mom that the class won't wear the dresses she's made for this years Lucia parade.
Pelle is back after being home sick for a week. The class wants him to write a Christmas song, and he reluctantly agrees, something he regrets when everyone starts coming with requests and suggestions.
Alfred and Ellie has started hanging out together. He hasn't told his friends because he's afraid that they will think that he and Ellie are more than just friends.
It's time for the boys' scary sleepover. Alfred has found an abandoned fire station, and starts telling a story about a ghost, to scare Hugo. Turns out that though Hugo is the youngest of the four, he's not the only one who gets scared.
The class is baking cakes. Magnus, Christian and Alfred find out that Pelle is rather gullible, so they "assist" him with the ingredients for his cakes.
Laurits and Viola has been working hard on his secret project for Ida. When Laurits admits he has told Kasper, Viola is afraid that Kasper may not be able to keep the secret.
Magnus and Laurits are sure that Michael is up to something. They decide to follow him. Laurits doesn't want Magnus to know that Michael is dating his mother, so he suggests that only he follows Michael, causing Magnus to be suspicious.
Magnus has become obsessed with figuring out who is the evil Santa, causing him to mess up his chance to be on TV with Alberte.
Magnus becomes very jealous when he sees Albert and Christian talking, and it get's even worse when she starts styling his hair. Magnus decides to send the bus on a detour so that he can do the interview for TV.
The class arrive at the castle. Instead of being happy everyone is arguing. Viola finds an old photo album. A photo drops from the album, which gives Magnus another lead to who may be the evil Santa.
Viola tell Magnus all about why she chose to be the evil Santa, and after hearing her story, they decide to bury the evidence.
Everyone except Magnus is mad at Viola for being the evil Santa. Magnus decides to do one last attempt at getting the class into the Christmas spirit.