Emilka is called to school about Tośek's deteriorating grades. In the classroom, a policewoman witnesses one of the students being bullied. A moment later, it turns out that the student came to class with a self-made bomb. The boy also has a gun, which he aims at his classmates one by one. Emilka sends a text message to Lena asking for help. Deputy Commissioner Lena Kamińska immediately reports to the school principal. The policewoman is accompanied by Constable Bartosz Sołtys. It turns out that there are more bombs at the school. The director himself has one of them in his office. The police order the evacuation of the entire school. Sappers arrive on site. The boy's teacher from the orphanage also shows up. From him, the police learn the difficult story of a child that no one wanted. Meanwhile, in the classroom with hostages, Tosiek cannot stand the tension and provokes the attacker with a gun. A shot is fired. Now Constable Bartek steps in and has his own idea to save the situation.
