A funny story about three best friends - young scientists who swear to not get married and concentrate only on science.

Twelve graduates of the tenth "A" arrive to the virgin lands. Freed from childhood illusions, yesterday's schoolchildren get used to the unsettled life, to hard work on combines, tractors, on the threshing floor. Soon other difficulties are discovered.

The hero of the film is an ordinary driver of a Moscow taxi, a kind and decent man. Each new working day promises him new meetings, acquaintances — sometimes joyful and pleasant, and sometimes demanding from him severe determination and courage.

Before the attack on the village, captured by the Nazis, the commander decides to carry out a distraction — a concert of the front-line brigade of artists. Chef Antosha Rybkin is assigned to play the role of... a German corporal. Dressed in an enemy uniform, he gets to the rear of the enemy and helps his liberate the village.

About the life and heroic death of the old Bolshevik-Lugansk resident, participant in the civil war, Aleksandr Yakovlevich Parkhomenko. In 1918, capturing Ukraine, the German occupiers sought to use the Haidamaks, the White Guards and the Greens in their struggle. By order of Voroshilov, Aleksandr Parkhomenko from Lugansk arrives in Tsaritsyn. At the same time, the Germans launched an active offensive. The "red" battalions are poorly armed, however, Parkhomenko manages to raise them to the attack and put the enemy to flight.