The ambitious punk rocker Max and the eco-activist Inge cannot stand each other, ever since Max publicly exposed her by singing the offensive song "When Inge is Dancing" in front of the whole school. But for Max and his classmates Fabio, Joscha and Lukas this song in particular has become a real hit at school as well as in the regional music scene: Their band called Systemfehler is on the verge of a breakthrough. But just before the important gig, which could get them a record deal, guitarist Josha is injured and can't play. Inge happens to be an excellent guitarist, and the only person who can fill in at such short notice. But when Max asks for her help, she imposes one non-negotiable condition: If she decides to play with the band, they will not perform the song "Wenn Inge tanzt".
When her father suffers a heart attack, Christine, a qualified vet, travels with her two children from Munich to Carinthia to take over his veterinary practice while he recovers. However, this puts her marriage to architect Thomas, which is already in crisis, to the test. While the jealous Thomas is on a business trip to Salzburg, the attractive Christine is being courted in Carinthia by the charming farmer Georg Reiser.
The third form of a boarding school and the students of a neighboring school do not get along. Each side dreams up the craziest pranks to defeat the other. And when one day the high school students go as far as stealing the Gymnasium students’ essays and even burning them, daily school life really gets out of hand.