Based on real events that took place during the construction of the Nurek hydroelectric power station, where a new form of socialist competition, “Workers' Relay Race,” was born.

The corpse of old Bobo Nazir was found in a mountain village after a fire. Major Kasymov in the basement of a burned-out house discovers a chest with jewelry that belonged to the Basmach Rakhimbek. The absence of a priceless battle belt points to the cause of the crime. The detectives go to the jewelry dealers to capture the criminals.

Umar Sanginov's father was once forcibly removed from the country. Having been born on a different land, the grown-up son decided to return to his homeland. While completing the task of foreign intelligence, the hero voluntarily surrenders to the border guards, helps to expose the resident and prevent the explosion of the hydroelectric power station.

Pavel Strokov, the head of the meteorological station, who has worked in the mountains of Tajikistan for a quarter of a century, says there is a possibility of a devastating mudslide. But unfortunately, his warnings are not taken seriously.

Based on the novel of the same name by Karamatullo Mirzoev. A love story told by Tajik filmmakers.