Four parallel stories: "Ship", "Port", "Pompeia" and "Theater" are connected with the fate of the captain of a training warship Andrei Glebov, who visited a foreign port city.

Kolosov, a former oil refinery technologist, is appointed director of the research institute, which has long been estranged from real production. The new director energetically takes up the task, and somehow does not pay much attention to the fact that the scientific staff of the institute, headed by Professor Serafima Shuvalova, begins to group against him.

Follows the events of August 1918 in Tsarevokokshaisk (Yoshkar-Ola), when the White Guards, led by local princes, were preparing a coup.

Oleg Norov, the coach of a soccer team, realizes that the matches are held according to the scheme of "secret totalizator" and decides to break the rules of the game not established by him. Self-investigation, which the coach starts, leads him to a fraudster nicknamed "Man Mountain".

In 1568, Saadi prince Abdelmalek is exiled from Morocco by his brothers, an event that is only the beginning of his adventures: fighting the Spanish Inquisition, taking part in the Battle of Lepanto, being incarcerated in Alicante prison, and assist in the Conquest of Tunis. Eventually, he returns to Morocco to fulfill his destiny.

A young governess arrives from Moscow to an ancient Russian city. She is invited to the house of one of the richest people in Russia to raise his daughter. While still on the train, the girl falls in love with engineer Alarin. And now the owner of the house has a passionate feeling for her.

A story about CHeKa operation against a foreign spies during the early years of Soviet Russia.

A story about a rookie detective in the beginning of his investigative career.

The families of 18 soldiers who heroically died in 1944 are meeting at the place of the squad last battle.