By order of General Sytko, a rock ridge explodes during the construction of an important strategic facility in the desert, leading to human casualties. And now General Nesterov will have to mobilize people in the difficult conditions that have arisen and cope with the task in a short time.

The summer of 1971 was hot and dry. This circumstance ensured that the plan would be exceeded and promised large earnings for Ivan Kopyriv's geological exploration expedition, which was located in the area of the Tunguska village of Erbogachen. Upon encountering a layer of permafrost, master Yelfimov, contrary to fire safety regulations, ordered the permafrost to be thawed with bonfires. However, the dry and gusty wind did its job: the resulting fire spread with catastrophic speed to the continuous forest areas, and the situation spiraled out of control.

Three boys and a girl go to another city to search for the father of one of them in order to get money from him as compensation for leaving the family. On the way they meet the homeless man Petrovich, and this meeting makes them think about many things.

During WWII Germans take hostages four children of partizans chief .

The young landowner Astakhov comes to check the affairs of his distant estate. He meets his neighbors and among them two young girls. The arrival of Astakhov destroys the calm of the usual estate life.

Not young bus driver goes to the next trip. In this trip he recalls his childhood during WW2. But there is another danger people among passengers of the bus.

The new young director of the car depot shows energy and the ability to come to an agreement with everyone for the common good, but his principle “you - for me, I - for you” has not yet been approved by the car depot team...

30 years after the end of World War II, a Soviet and an American journalist meet again for realizing post war paths of their countries.