A construction comedy about the labor struggle of two groups of workers in a Prague factory. The old group is led by the grinder Karhan, while the young group is led by his son. The struggle between the two groups leads to the emergence of socialist competition and cooperation, in which the old share their experience with the young, and the young share their new ideas.
František Smolík
as Franta Karhan
Jaroslav Mareš
as Jarka Karhan
Světla Svozilová
as Karhanová
Jindřich Plachta
as Ferda Fikejs
Marie Rintová
as Fikejsová
Vladimír Řepa
as Záruba
Jaroslav Zrotal
as Pepíček Dvořák
Vladimír Krška
as Tulach
Rudolf Deyl
as Lojza
Jiří Kostka
as Zákora
Václav Neužil
as
Zdeněk Martínek
as Bohouš