At the amateur talent show the boy, accompanying himself on the accordion, sings a song about Moscow... The plot of the movie is based on the story of the director of the school about how this accordion, once belonging to a cadre worker who died during a demonstration in 1905, has been in many hands before it got to the guys.

Story of children in the village of Sokol, whose war game turns into reality with the German invasion on June 22, 1941. As their village faces danger, the children come together to help defend it, assisting with tasks like extinguishing bombs and supporting those left behind.