Investigating the case of a boxer found stabbed to death, Behzat and his team enter the dark world of illegal fight matches.

After the murder of a retired colonel, disguised as suicide, Behzat calls a journalist who interviewed the victim for an article to be published soon.

A personal development expert is found drowned after giving a seminar. The mysterious bag, which he was seen to carry with him in the seminar videos, is now missing.

Behzat investigates the murder of a symposium speaker at the hotel where he stayed during his holiday getaway and is shocked when he receives the ballistics report.

The murder of the mother and her two young children leads Behzat's team to the woman's husband, relatives who disapprove of the marriage, and a missing psychic.

The homicide squad investigates the murder of the cabin supervisor responsible for the dismissal of his colleague and the removal of a passenger from the aircraft.

When Ercüment calls Behzat to take responsibility for three new murders, the homicide team and a special team cooperate to organise an operation.

The team tries to hide the news about Eda and Selim from Harun on his special day. Behzat learns why Ercüment wants revenge and who killed Berna.