Furin returns from his long absence, his old colleagues looking at him as if they’ve seen a ghost. Rakova immediately demotes Victor in favor of Furin to the head of the homicide department. Although Victor is in dismay, Rakova reassures him that his favor will not go unrewarded.

After Furin takes matters into his own hands, Victor confronts him. A paranoid pop star seeks help from the department, but the circumstances on his case are uncertain. However, when the pop star’s security detail is murdered, Rakova urges Furin to take the case.

An old man stumbles upon a troubling note and rushes to the station for help. When multiple women have been kidnapped, the department will have to act quickly in order to save them. Furin takes the younger investigators under his wing. Rakova’s transfer is revoked, causing Victor to panic about his future.

Furin pursues the lead given to him by Rakova; the fourth and final member of their old team. Ghosts from the past raise tensions even higher between Furin and Vitya. After releasing a former criminal, Furin plans to use him to get closer to The Baron.

Natashka returns to work with the rest of the team, while Furin escapes from the hospital. A serial killer dismembering his victims is at large in the city. When Furin begins to hallucinate about his loves ones, he reaches out for psychiatric help.

After Natashka gives hidden details about his daughter’s possible survival, Furin’s hallucinations worsen. An Internal Affairs agent visits the department, investigating the department’s recent mishaps. Desperate for money, Zhenya takes on a dangerous mission.

Zhenya’s suspicions of Natashka grow as he takes evidence to Internal Affairs. Internal Affairs brings in a hacker to expose Natashka’s emails, while Furin attempts to find out why. Rama warns Ahmed about the police’s interest in him.

After Zhenya saves Furin’s life, the two hunt down the shooter and interrogate him. Evidence leads the team to suspect a terrorist attack during a big soccer game. Furin has his revenge and later reunites with a loved one.