Based on real events that took place during the construction of the Nurek hydroelectric power station, where a new form of socialist competition, “Workers' Relay Race,” was born.
as Konstantin Dyomkin
as Mavlyuda
as Said-aka
as Begov
as Damir
as Igor
as Fyodorov
as Akram
as Sangov
as Saidmuradov
as Damir's Wife
as Davron
as Daler
as Takhir-aka
as Graduate Student
as Dato
as Konstantin's Mother
as Refueller
as Grigoriy Ivanovich
as Ignat Petrovich Levchenko
as Clansman
as Team leader
as Clansman
as Driver
as Secretary
as Mavlyuda's Mother
as Conferee, uncredited
as Mavlyuda's Grandmother, uncredited
as Raisa Nikolayevna
as Rustam
