With World War I, the Bolshevik Revolution, and the Russian Civil War as backdrop, it's an old-fashioned, blood-and-guts narrative, filled with earthly humor and a wealth of colorful characters. The story concerns the fluctuating fortunes of Grigory Melekhov, a young Cossack who is both a hero and a victim of the uprising.

Paleographer and writer Anton Glebovich Kosmich finds in the binding of an ancient book a parchment with encrypted information about treasures hidden in the dungeon of the castle. It gradually becomes clear that the last scion of the family of the Olshansky princes, who collaborated with the Nazis during the war, is also looking for the treasure. In the dungeon of the castle, along with treasures of the 17th century, materials from the SD archive are also hidden. The spaceman is in mortal danger.

Based on the novel of the same name by Aleksandr Lukin and Dmitriy Polyanovskiy. Russia, 1919. A young soldier of the First Cavalry Army, Aleksei Mikhalyov, is sent to work in the provincial Cheka. Here in the south of the country there is a large White Guard underground led by the elusive Markov. Aleksei gets into the gang, where he is mistaken for his own. The day of the operation to eliminate the white underground is appointed. But unforeseen circumstances destroy the plans of the Chekists.

1918 year. A woman commissar has been appointed from the Central Committee of the Bolshevik Party to the Russian warship Gromoboi, which is ruled by anarchist sailors. The leader of the ship is the anarchist Vozhak. The Commissioner was instructed to reorganize the naval detachment into the First Sailor Regiment. She faces a difficult task: to win the authority of the sailors and eradicate anarchy. Of the remaining officers on the ship — lieutenant Bering, who served in the tsarist fleet on the battleship "Emperor Paul I". He must become the commander and, together with the sent commissar, lead the regiment to the front in the Black Sea region.

After graduating from the Faculty of Geology, Vasiliy Ruban goes to Transcarpathia, where he will take part in a prospecting expedition, the object of which is oil fields. A business trip of a young man turns into a quarrel with his girlfriend, who dreams of a graduate school in the capital. Despite the assurance of an experienced engineer in the absence of oil deposits, Vasiliy continues his search, which turns into an unexpected discovery of oily spots in the waters of the river. At the same time, the geologist meets Kseniya, a local girl who has won the heart of a man.