The film is set in the 1930s in the USSR. The film tells about one day of the construction of the Magnitogorsk Iron and Steel Works. The heroes of the film are simple construction workers who are burning at work. Upon learning that their colleagues in Kharkov have set a record, they mobilize to break it. The entire construction site was engulfed in immense socialist competition. The teams are ready to complete the work on time at any cost. A Moscow journalist who has come to cover the scale of the great construction project is looking for the hero of his report...
Инна Гулая
as Shura Soldatova
Тамара Сёмина
as Olya Tregubova
Сергей Юрский
as Margulies
Леонид Куравлёв
as Korneyev
Александр Январёв
as Ishchenko
Владимир Кашпур
as Khanumov
Станислав Хитров
as Sayenko
Раднэр Муратов
as Zagirov
Вадим Зобин
as Mosya
Елена Королёва
as Fenya
Лариса Кадочникова
as Katya
Татьяна Лаврова
as Klava