Jacek Nowak notifies the sixth patrol about the disappearance of a several-year-old girl. The child was on a school trip and did not return to the bus after an organized break. Staff midshipmen Marek Korwicki and Natalia Mróz go to the scene of the incident. There they meet a distraught teacher. A moment later, the mother of the missing student arrives at the bus stop. The woman blames the teacher for neglecting her duties. After a short interview, the police start looking for the child. A moment later, the first lead in the case is obtained. The police obtain footage from the camera of a passenger car parked near the bus. During the investigation, it turns out that the mother of the wanted student concealed certain facts from the past, which turned out to be extremely important in the investigation. Marek is very upset about the situation with his son. The policeman is slowly losing hope that Igor will one day recover.
