The film is based on authentic events that took place in 1957 in Kursk. Fifteen years after the war, the sappers will have to clear away the ammunition depot left by the German's. The town rebuilt with such difficulty is under threat of explosion...

The Soviet boys, Vadik and Yura, together with the mischievous little girl Tosha, are children with a kind heart and good life philosophy. One day they find money on the street, which must be returned to the owner without fail. But where to find an inattentive citizen who has lost not only money, but also a booklet with quite important information. So, begins the time of exciting adventures, breathtaking moments, high-quality humor and instructive-entertaining ideological line.

Based on the novel of the same name by Oleksandr Dovzhenko. About the childhood of the famous Ukrainian film director Oleksandr Dovzhenko, who was born on the ancient lands of Chernihiv, along the banks the Desna. The film consists of two parts. The first is the world shown through the impressions of the six-year-old Sashko. The second is the recollections and reasoning of Sashko, now an elderly colonel who liberates his native village during the war.

1919 year. There is a civil war in Siberia. Taking advantage of the complete confusion, Admiral Kolchak wants to export part of the country's gold reserves abroad. At the very last moment the Bolsheviks find out about it. They decide to intercept the train, but do not have time to properly prepare the operation... The girl Nadya, in whom the head of the train is passionately in love, can save the situation. Several kilometers of railway tracks to the border become a battlefield between white and red.