In November, 1942, near the Volga, Stanlingrad is under siege of Commander Friederich Paulus and his 330,000 men. The Russian high command unleashes an operation to protect the Mishkova River to avoid that about four hundred tanks join Paulus' army. The Soviet artillery soldiers protect their position with their lives in a bloodshed with few survivors.

Abkhazia, 1921. Alkhas, a Bolshevik underground worker, returns to his native village to strengthen Soviet power in his homeland. Aditsa, the prince's daughter, falls in love with Alkhas, but her father would like to marry her to Prince Safarbey. The prince did not accept the new power and took up arms. Safarbey's gang kills Red Army liaison Korablev...

Shortly after a daring jewelry store robbery, two murders occur in the city. An experienced investigator suspects that there is a connection between these crimes. But there is no proof. At the same time, the gang leader not only does not think of hiding, but calmly communicates with the investigator in the vacation home. He is sure that he has subtly calculated all the moves, and therefore he is invulnerable.

About the events of the final stage of the Second World War — the defeat by Soviet and Mongolian troops of the selected Kwantung army. Bacteriological weapons were created in the laboratory of Japanese General Ishii Shiro. Experiments were conducted on prisoners of war and political prisoners. Epidemiologist Dmitry Sokolov was assigned to solve the mystery of this laboratory. At the cost of his own life, he completed the task. The march of Soviet and Mongolian formations through the Gobi sands and the Khingan spurs was not only a brilliant military operation, but also a warning of the use of bacteriological weapons by Japan.

Zhamin, a member of a geological expedition and a former criminal, receives a strange letter, after which he quits his job and hurries through the taiga to a nearby station. In the city it is necessary to leave and his main enemy Legostaev, whom Zhamin has long threatened to kill. Zhamin comes to the station alone. He‘s found to have a bloody knife and a large sum of money with him.

38 Petrovka Street. Here, in the operations room, information about incidents in Moscow flows in. By pure chance, police captain Stanislav Tikhonov and forensic expert Margarita Ushakova meet on duty after six years of separation. In the cycle of accidents, in the tense waiting for a call they will try to understand why their relationship did not work out.

The main character, nineteen-year-old Anastasiy Chizhov, was appointed commander of the Zver patrol ship. Under his leadership, the old fishing vessel becomes a strong fighting unit.