Employees of the criminal investigation department of the Butovo district do not remain without work. Makarov and his four charming colleagues do not give up hope of competently combining everyday work and personal life. Willow's son has grown noticeably, and now the girl is throwing all her strength into finding a suitable father for him. And finds him, right next to the duty station. Turkina and Denis still can't figure out their own feelings. However, this does not prevent Turkina from pushing her companion forward every now and then, so they are preparing for the wedding. But Popova, who constantly finds herself in ridiculous situations, is not at all up to romance. But her love will not be spared - she is conquered by the star of the police series. Sinitskaya, having discarded all prejudices and principles, plunges headlong into flirting and petty affairs. Makarov himself never ceases to be convinced that women are only capable of destroying his life. He is going through Lera's departure and is trying to build a relationship with Margarita, a lawyer. And along the way, Butovo police officers are trying to protect their area from criminals.