This year, repeating the grade is a top priority for Tim and Erik, so when they have to help janitor Tony, they want to get it over with quickly. When it turns out to be Tony's birthday, things take a different turn.

The school is under the spell of witchcraft. The new religion teacher starts an inquisition, and Mr. Hulst takes his first steps as a wizard. It's up to Tim and Erik to keep a cool head.

Now that Tim can't have Marietje, he wants to live a sexless life. Unfortunately, hormones are flying around, and he's tested from all sides. Meanwhile, Erik tries to seduce Roslin.

Tim and Erik wake up in Barteljaap's classroom. It's evening, the school is deserted, and the classroom door is locked. Sounds like the start of a horror episode.

Tim and Erik play the legendary football tournament against Hulst's team, but Heydrich hasn't divided the teams entirely fairly.

It's the end of the year, and the final exam prank is coming up. Tim and Erik have big plans, but then Erik's sudden maturity throws a wrench in the works. Barteljaap is still a king.

Final exams are in full swing, but the quarrel between Tim and Erik endangers the school's delicate ecosystem. It's up to Mr. Hulst and the students to restore balance.

The big end-of-year party has arrived. Barteljaap is nervous, he's never been to a party before, but Tim and Erik reassure him. Barteljaap is a boss, so what could possibly go wrong?

The school year has truly ended, and the school is shaken by recent events. Everyone says goodbye, but for Tim and Erik, it all starts again after the holidays.