Having fled from the Crimea, Wrangel, having concentrated his army on the Bulgarian coast, is preparing a landing force and counts only on the support of the counter-revolutionary underground hiding in Rostov. Captain Filatov falls into the hands of the Red Army soldiers, who is "arranged" to escape with the help of Chekist Bakharev. Filatov, together with his "savior", finds himself at the center of a secret organization preparing a senseless rebellion.

A biopic, looking at one of the major leaders of the assassination of Czar Alexander II.

Police captain Aleshin is investigating a case related to the theft of opium at a chemical factory warehouse. Everything suggests that the offender must be sought among the employees of the enterprise. One of the workers, Frolov, is familiar to Alyoshin in another matter. And although Aleshin is confident in Frolov’s honesty, he suspects something was wrong, seeing how he hides something from him and himself suffers from it. At the dacha, the factory director Vasiltsev killed his stepfather, who turned out to be an unnecessary witness. A trace brings Aleshin to a plant employee, a certain Olga ...

Soviet spy Ladeynikov learns that in one of the pharmaceutical centers in a small resort town works a former German war criminal, Dr. Hass, who is finishing the creation of a deadly chemical gas RH development that he began during World War II, experimenting on POWs. Since Ladeynikov doesn't know Dr. Hass's appearance, Soviet intelligence recruits an actor, Ivan Savushkin, who, during the war, escaped from a prison camp where Hass was testing his gas. Together, they must identify and stop him before he finishes and unleashes his weapon of mass destruction.