Film deals with Stakhanovite movement. Old miners try to sabotage young man's plan to renew methods of getting coal.
as Anton Mikhailovich Kulagin
as Stepan Kulagin
as Pavel Lugovoj
as Dunya Velichko
as Vladimir Nikolaevich Sokolov
as Miner Zaika / Dr. Starkovsky
as Sliva
as Sergo Ordzhonikidze
as Vasiliy Grigoryevich, medic
as Commission member (uncredited)
as Marya Trofimovna, Stepan Kulagin's mother
as Dunya's friend
as Andrey Poplavskiy, mine director
