Vershinin almost recovered from his wound and is ready to return to service. But he doesn’t have time to leave the hospital when an assassination attempt against Gleb Borisov and Yura Nikitin, which continued his father’s business after his death, takes place in Portovoy. Jura interferes with many of those who claim to own a port, including the Moscow Resources Corporation.

Medushevsky, who is under investigation, is about to announce the verdict. He hopes for the support of the corporation. Alexei Khaletsky, the manager of the Yakovlev club, intends to take Yakovlev's business to a new level. He meets with Yura when he visits Borisov’s hospital and makes it clear that he will have to resume drug supplies through the port. Yura refuses. That night, Borisov was killed in a hospital. Vershinin understands that it is time to assemble a new team and begin active work.

A former accomplice Yakovleva Rusov comes to Khaletsky who is interested in continuing to supply drugs to St. Petersburg. Khaletsky is forced to intensify the sale of drugs on the streets. Vershinin continues to investigate the attempt on Nikitin and Borisov. The evidence points to the serious training of the attackers and their connection with the highest army leadership. Yura himself is also not going to sit back and decides to take revenge on the murderers of his godmother on his own ... Medushevsky orders his man to force pensioner Zemaitis to change the evidence given against him.

Ilyina puts pressure on Vershinin - murders in the city should stop. Meanwhile, Khaletsky abducts Yura and tries to force him to abandon the business by torture. But Yura refuses to make a deal with him. The opera finds out that behind the sale of drugs in Portovoy is Khaletsky, on whom all crime is locked. Vershinin will have to figure out what is happening ... At this time, father Vladimir Davydova leaves the prison. He offers his daughter a deal: telling her about the place where Khaletsky can hold Yura in exchange for help in opening a sports club.

Vershinin with riot police storms a country house in which they hold Yura. However, Khaletsky has nothing to present except kidnapping. Vershinin understands that more powerful forces were involved in the assassination of Yura and the murder of Gleb Borisov ... Thanks to his connections, Medushevsky is released directly from the courtroom. First of all, the lawyer contacts his wife Kristina, who once contributed to his arrest ... A maniac appears in the city. He already has several rape and murders.

Gubin, whom Vershinin left in his team, takes the matter under his personal control, but searches in hot pursuit lead to a dead end. And the killings continue. Vershinin receives the case file at a private Baltic military corporation, which may be involved in an attempt to seize the port. Davydova has her first problems with her father: he forces her to “protect” an underground fighting club, and, of course, secretly from Vershinin.

In Portovoy, the girl was raped and killed. This episode is the third in a short time. Vershinin requires Gubin to take active measures to capture the rapist. Pugachev worries about Diana - according to Pug, she became interested in some kind of muddy type ... Between Kovak and Ilyina there is a discord - Ilyina is afraid of her lover. Medushevsky takes advantage of this, having at his disposal leverage over the future mayor of Portovoy.

Now operas have a living witness who can identify the perpetrator. According to Diana Davydova’s testimony, she understands that the maniac is her brother Yegor ... Vershinin sends operas to monitor the suspicious activity of Serge and his people in the port. Inexperienced Komarov comes across to Serge. Realizing that his employee is in mortal danger, Vershinin decides to storm the port with riot police.

Kristina finds out where Yura is hiding, and reports this to Medushevsky, hoping that he will let her go. Medushevsky instructs the Bear to kill Nikitin. At the same time, the top manager of Moscow Resources Corporation Lupanov is found dead in a hotel room. Vershinin suspects that this is the work of Serge. But who killed Yura - this remains to be seen.

Gubin's mother needs surgery and expensive treatment. Gubin decides to take a desperate step - but for this he needs to go to Serge himself ... oligarch Isakov comes to Portovy - he wants to find out who killed Lupanov. For Kovak and Serge, his visit does not bode well - there is a video recording that shows how they went to his room before the murder of Lupanov. Isakov, who does not trust anyone, puts Colonel Zharov to Kovak - supposedly to ensure security, but in fact - to control the actions of a wayward partner. Davydova and Komarov go on the trail of the killer Bear.

Vershinin is investigating a shootout on the road in which Gubin was wounded and five were killed, but for some reason they left alive a witness - Masha. He forbids her to tell anyone that she was at the site of the shootout. This raid was made by the people of Davydov on the orders of Medushevsky. Christine, fulfilling the task of Medushevsky to get to know Isakov closer, sets a bug in his room. Isakov still has no opportunity to transport weapons abroad, despite the fact that the people of Zharov recaptured him from the police.

The new curator of Stas Komarova, Lodygin, demands that he, by any means, rub himself in confidence in Masha Davydova. Valeria gives Vershinin a flash drive with a recording from the surveillance camera at Lupanov’s number. It shows how Kovak and Serge enter the room a few minutes before his death. Jamal comes to the pre-trial detention center on a date to Khaletsky and demands that their agreements be fulfilled - to provide him access to the port for organizing drug trafficking. Khaletsky agrees to an investigative experiment at the scene of the incident, during which the people of Jamal arrange his escape. Ilyina was tired that Medushevsky was manipulating her, and she asked her secretary Roman to find incriminating evidence against the presumptuous lawyer.

Head of security Isakova Zharov finds secret data from Kovak’s mail on Gubin’s phone. Under torture, Gubin is ready to admit not only that he is an agent of Vershinin, but also that he works for Medushevsky and killed Lupanov. Zharov orders to get rid of Gubin. Ilyina meets with Zhemaitis and offers to give a stroke to the dirt on Medushevsky. Medushevsky is ready to help Jamal with the transport of drugs. He sees in it a powerful force, ready to challenge Moscow Resources.

Upon learning that Gubin was tortured, Vershinin raids the port. Kovak demands that Mark fulfill the order for Medushevsky, otherwise Christina will suffer, to whom Mark feels sympathy. But Medushevsky did a lot for Mark. Ilyina’s daughter Zhemaitis comes and reports about the murder of her father, whom Ilyina promised safety in exchange for incriminating evidence. Ilyina realizes that she put herself under attack. Zharov orders Pavlov to provoke Vershinin so that he would be removed from his post and Moscow Resources could put their police chief in Portovoy. After the murder of Pavlov, Vershinin was temporarily removed from office from the service weapon.

Jamal and his fighters kidnap Ilyina near the restaurant. They hide her outside the city, introduce a serum of truth and record an interview on a camera in which Ilyina admits that she is not going to fulfill campaign promises and calls voters a cattle. Medushevsky gives way to scandalous material, and Ilyina’s political career is collapsing before our eyes. Kristina comes to Vershinin: Medushevsky wants to kill her. Vershinin is ready to help in exchange for testimony against Kovak, but a patrol appears and detains her on suspicion of double murder. Pugachev was appointed interim chief of the city police.

While Jamal keeps Ilyin hostage, Medushevsky manages to promote Shustov as mayor. The balance of power in Portovoy is changing - Moscow Resources is clearly losing ground. Meanwhile, the opera continues to seek evidence of Vershinin’s involvement in the murder of Pavlov and is faced with an unexpected obstacle in the person of Pugachev. He is sure that it was Vershinin who killed Pavlova, and does not want to give the investigation a move.

Jamal’s people take cargo at the port and take them to their base, where part of the boxes are loaded into another car. Vershinin finds out about this in advance, and as a result of a special operation, he manages to detain his younger brother Jamal. Escaping from the Caucasian fighters, Khaletsky and Ilyina return to the city, where they are not at all happy about their appearance. Medushevsky has to look for new ways to put pressure on both.

Pugachev goes to the detention center on charges of extorting a bribe from Diana. To understand what happened, Vershinin and Gubin go to St. Petersburg to Dashkevich and find out that the CSS has been deliberately digging for their department for a long time. Vershinin understands that in order to save Pugachev, one must act decisively. At this time, Davydova, following Komarov, becomes a witness to his secret meeting with Major Lodygin. She understands that all this time Komarov just used her.

Jamal with his people makes an attack on the ambulance, hoping to arrange an escape to his brother, but in time Gubin, who has arrived in time, repels the Caucasians, and they die in a shootout. Medushevsky convinces Isakov to get rid of Kovak. Suddenly, in a cafe, Khaletsky abducts Vika - the guard recognized him as a runaway prisoner, and in order to leave, he was forced to take a hostage.

Vershinin, fulfilling the conditions set by the kidnapper, goes to meet with Khaletsky alone. Kovak quarrels with Ilyina and plans to flee the country without her on a ship that smuggles weapons. Isakov instructs Zharov to kill Kovak. An opera who also learned about Kovak’s plans also leaves for the port. Moving all the arrows to Kovak, Medushevsky, it would seem, is again slipping away from justice. But Vershinin and his team do not give up, let alone Khaletsky agrees to cooperate with the police.