Hullu - hullumpi - yläaste - Season 4 (2019)

Keijo wants to improve his grades right before holidays, driven by his mom's promise of rewarding him with a new video game. Meanwhile, the teachers are struggling with a whole new grading system.

When parents force Antti to get some fresh air, he finds out that a loitering teenager isn't welcome pretty much anywhere.

Antti's new year's home party for his friends gets out of hand.

Kalle the student becomes the teacher, when the school staff is having a hard time learning mandatory new technology.

While Antti is trapped at the school cafeteria for a mandatory work experience day, he feels envious for Kalle and Jaana having a good time together at class.