The beginning of the 1950s. Nikolai Babushkin, a young specialist in one of the taiga construction sites, who had just been elected a deputy of the district council, was sent behind a brick to the city of Dzhegor. He is already familiar with the bold project of the engineer Cheremnykh, according to which one of the shops of the brick factory can be transferred to the production of expanded clay blocks in a short time. To provide the construction site with the necessary material, Nikolai gathers a team and helps the inventor to implement the project. There, in Dzhegor, he meets Irina, a graduate of the architectural institute …