A young man has led his whole life with his grandfather. When he was in school, he was the only one who was refused to join the Youth Brigade, since his father was sentenced to death for spying. When it is time for him to do the compulsory military service, he has to do it in a platoon for "unreliable" persons.

Rudolf Hrušínský
as Grandfather

Ivan Jiřík
as Janek

Jakub Vrabec
as Janek (child)

Vítězslav Jandák
as Kopřiva

Miroslav Táborský
as Hvolek

Jiří Sedláček
as Anděl

Martin Dejdar
as Ing. Šídlo

Tomáš Juřička
as Zunek

Jiří Pomeje
as Holoubek

Dušan Cinkota
as Gažik