The movie XIIa is the sequel of the super successful XIa. In XIIa the journey continues. After two years break, Lina is back to school to teach a new class - a new class, new problems. At home, the situation is also not better. Lina is separated with her cheating husband and her dominating mother is constantly bullying her, Lina's son is maltreated by classmates - at times the tension reaches extreme limits and Lina is about to collapse. Fortunately, she finds support in the sports teacher, a fo...