When Rıza Baba, Mesut and Hüsnü are about to capture the gang leader Tefo, they are prevented by Chief Prosecutor Ramiz and arrested on false charges. While Prosecutor Ramiz acts as Tefo's partner who fled abroad, it is a matter of curiosity whether the team will be able to get out of prison. Hakan, Aylin, Selin and Zeki try to support them from the outside. While all this is happening; unsolved murders of women are taking place in Istanbul. The team is left out of the investigation. Will the team take any action against this situation? In addition, Chief of Police Candan Ceylanlı unexpectedly joins the team.

As our team pursues a serial killer, the bloody murderer is looking for new victims. Çebi stays on Zeki's tail. Mesut senses something strange about Zeki.

When the chief physician Dr. Faruk is murdered, attention turns to a suspicious immigrant. The people of the neighborhood attempt to lynch the immigrant whom they think is the doctor's killer. Meanwhile, Forensic Medicine, which examines the knife used in the murder, will add a different dimension to the investigation. Nazike learns that Şule is taking the exam to become a police officer. Şule is very afraid that her father will find out about this. Nükhet wants to take Kaan to Izmir. But Hakan is not ready for this. Çebi wants to use Zeki for his dirty work. Zeki has no other choice. Selin has been exhausted lately and needs to take care of her pregnancy.

Rıza Baba and the team go after the contractor who built defective houses. Homeowners rise up against the contractor. Candan confronts Mesut and tells Rıza Baba that he doesn't want to work with Mesut after the events!

When Attorney General Ahmet's son Uzay wakes up after a nice night with his girlfriend Defne, he falls into a nightmare. This will be a process that will lead to the removal of Chief Prosecutor Ahmet from his seat. Selin starts to lash out at Mesut under the stress of her pregnancy. Mesut, on the other hand, cannot agree with Hüsnü about Candan. Gülo continues to stay with Candan. Candan takes the little girl under his wing. Hüsnü still has concerns about Şule becoming a police officer. That is why he is very harsh towards his daughter. Hakan's mind is on his son in Izmir. He constantly argues with Aylin about moving to Izmir.