In this season, Sanya Balabin finally receives the rank of , but his professional success often comes at the cost of his family life. The season's primary arc involves a cold-blooded killer who remains one step ahead of the police, alongside several standalone cases. Key story arcs include:
General Karandyshev retires, leading to Colonel Postysheva taking his place. Unexpectedly, Balabin's colleague Gribanov takes over Postysheva's former position instead of Sanya. In this season, Sanya Balabin finally receives the
Сериал Балабол-4 (2020) - содержание серий In this season