Lazy, uneducated students mostly coming from money, share a very close band. They live together in the dormitory of this private highschool, where they daily plan their latest pranks on teachers or the other classes. When a new and obviously strict headmaster arrives, the students naturally try to overthrow him. A comic war of nitwits follows.

A sincere and hardworking student joins the Chaos Class, but acceptance seems unlikely when he becomes the target of their pranks.

Lazy, uneducated male students mostly coming from money, share a very close band. They live together in the dormitory of this private highschool, where they daily plan their latest pranks on teachers or the other classes. Because of the financial crisis, the headmaster agrees to enroll female students. As the new students try to fit in, a struggle between both parties start, trying to prank the other part away. The prank war continues until PE-Teacher decides to take the class out on a trip for a becoming scouts.

A young and beautiful female teacher starts working in an all boys high school.

Lazy, uneducated students mostly coming from money, share a very close band. They live together in the dormitory of this private highschool, where they daily plan their latest pranks on teachers or the other classes. When one of the students get his girlfriend pregnant, the whole class acts together to help him. The mother has to leave the baby for a while with the father, and this leads to a series of funny events.

Lazy, uneducated students mostly coming from money, share a very close band. They live together in the dormitory of this private highschool, where they daily plan their latest pranks on teachers or the other classes. Especially, the new teacher for literature receives his share.

The year is 2003, and the Private Çamlıca High School, once home to the legendary “Hababam Class”, is still in operation. The school’s founder has passed away, and his son, nicknamed “Mad Bedri,” now runs the place. The time-honored Hababam traditions continue in full force, and every teacher is so exasperated by the endless pranks of that class that they’re constantly looking for a way out. Seeing his chance, Mad Bedri plans to sell the school to a developer in exchange for floor space rights, so that it can be torn down and replaced with a high-rise office complex. When the principal, Fatoş, learns of his scheme, she enlists the help of the original “Hababam” alumni to save the school by taking on its current troublemakers. Tensions rise once Bedri announces the sale, and a huge surprise awaits everyone.

After the latest prank they pulled on Deli Bedri, the boys are sent to mandatory military service to learn discipline.

Winter break has arrived. While the Chaos Class seems no closer to eventually graduating, Deli Bedri comes up with an elaborate plan to scare them away from the school so that he can finally find some peace.

A private boy's school opts to become mixed, and male students must adjust to the presence of new female students.

At a school tournament in Cyprus, Yakışıklı, Racon, Format and Dede wind up competing — and goofing off — on behalf of the Private Çamlıca School.