Hansi Kraus

The 13-year-old Ludwig is to have for every joke. At boarding school he cuts his stern teacher, Captain a. D. Semmelmaier, during the nap from the beard. The angry pedagogue then sends the spoiled flail back to his beloved Bavarian village. The long-suffering mother persuades the rector to resume her reforming boy at the Latin school. Everything seems to be working out for the better, but the upcoming marriage of his sister Ännchen with the Berlin beer brewer Karl Schultheiss presents Ludwig with new challenges.

Principal Gottlieb Taft's twin brother Gotthold Taft partakes in the most recent prank by faking his death and promising a large inheritance to the Mommsen-Gymnasium and the principal. Of course, the inheritance is tied to many embarrassing conditions.

Andy is mistaken for Eva at the girls' boarding school and treated sternly by principal Schatz but loved by his co-eds. To get Andy out of 'her' skirt Andy's pal Rudi has to dress up as Eva's mom to convince Schatz to release 'her'.

Thibaut Fismard from Munich has a hard time. His mother had married a Belgian engineer during the war, who disappeared immediately after the war. His mother raised her young son alone. Even at school and with neighbors, and later when looking for an apprenticeship, the fact that he was not German in the sense of the paragraphs stuck to him like a stigma. The opportunities open to his peers are closed to him, "the Belgian". The people of Munich dub his strange name "Tibo". When Tibo is suspected of stealing a moped and ends up in front of the juvenile court, the course is set for him to slip away. Tibo does not receive a work permit and certainly not German citizenship. But suddenly new paths open up for Tibo...

Pepe Nietnagel and his fellow students of the Mommsen school come up with all kinds of ideas to get out of doing any actual school work. This includes simulating suicides, setting off the air-raid sirens and abusing the school director's new broadcasting system. They succeed in sending their teacher to a sanatorium and get a replacement that turns out to not be so bad after all.