The film is based on the novel of Yevgeny Vorobyov. The film story speaks about people of a "risky" profession, i.e. highscalers, their complex interrelations, problems and love, of course.
A team of installers under the leadership of brigadier Nikolai Pasechnik are arriving for the construction of the blast furnace. At the construction site, Nikolai meets welder Ekaterina. He tries to care for her, but they often quarrel.