A retired Colonel named Can Uçar is found dead in his house. It seemed that the colonel shot himself in a ceremonial suicide. But the Murder Squad believes that the colonel was murdered and the suicide faked. Chief Constable asks Behzat Ç to investigate. Behzat Ç. finds that Colonel was interviewed by a reporter and he tries to find her. One the girl is located he realises that Can Uçar's murder was just the tip of the iceberg. Behzat ç. gets critical information from reporter which puts his life in danger.
The homicide team investigates the murder of a airline hostess who had made many enemies at work before being killed. Behzat and Sulle sink into depression over Ecrument's return to the city.
Ecrument is deemed not worth protecting any longer, and Big Brother sends a squad of special police from Istanbul to Ankara to kill him. Selim is finally caught by Eda, and Harun forgives Cevat. Behzat tries to keep up.