For the construction of the plant comes a team of ironworkers, they will carry out the installation of the blast furnace according to the new method. A film about the difficult characters of ordinary Soviet people who know how to work, dream, love - to build a great human happiness.
| Actor | Role |
|---|---|
 Nikolai RybnikovNikolay Pasechnik | Nikolay Pasechnik |
 Inna MakarovaKatya Petrashen | Katya Petrashen |
 Gennadi Karnovich-ValuaKonstantin Tokmakov | Konstantin Tokmakov |
 Marianna StrizhenovaMasha | Masha |
 Vasiliy MakarovIgor Deryabin | Igor Deryabin |
 Boris SitkoInnokenty Dymov | Innokenty Dymov |
 Sergei RomodanovBerestov | Berestov |
 Elena MaksimovaBerestova | Berestova |
 Lev BorisovBoris Berestov | Boris Berestov |
 Leonid ChubarovVasya Khaenko | Vasya Khaenko |
 Khoren AbramyanBagrat | Bagrat |
 Valentin PechnikovValentin | Valentin |
 Viktor LazarevNot listed | Not listed |
 Mikhail VorobyovNot listed | Not listed |
| LLidiya VinogradovaNot listed | Not listed |
 Valentina PugachovaNot listed | Not listed |
 Iosif KolinDoctor | Doctor |