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.
| Actor | Role |
|---|---|
| NNikolai LeonovZhenka Khvat | Zhenka Khvat |
| VViktor BoykoVasya Kuznetsov | Vasya Kuznetsov |
| PPyotr GrokhovskiyBobik Palkin | Bobik Palkin |
| AAnatoliy GorodulinMisha Loznikov | Misha Loznikov |
| BBoris AfanasyevBusya | Busya |
 Mikhail BelousovCaptain Streltsov | Captain Streltsov |
| AAleksey TarshinAleksey, Streltsov's brother | Aleksey, Streltsov's brother |
 Anatoliy IgnatyevKlimov (uncredited) | Klimov (uncredited) |
| VVladimir OsvetsimskyWatchman (uncredited) | Watchman (uncredited) |