It is a story about 12 or 13 years old girl in the middle of 60-th in USSR. She is a pioneer. She is in love with her pioneer leader - 16-17 years old boy, who doesn't even notice her. In order to impress him she tries to find someone, who was a member of pioneer squad in 1923 - one of the first Soviet pioneers...

Based on the true story of Russian pilot Valeri Chkalov (1904 - 1938), who set several long-distance flight records. Chkalov and co-pilots Baidukov and Belyakov altogether had accomplished several nonstop long-distance flights. In June 1937, Chkalov set the world record, covering 12,000 kilometers in 63 hours of nonstop flight from Moscow to Vancouver, Washington, flying over the North Pole.

Danka's and Ksanka's childhood in the village brutally ends when their father is killed by a White Guard officer in front of their eyes. Seeking revenge, they join forces with Valerka, an intellectual from big city, and the gipsy Yashka, but before they can get close to their enemy they have to help their village and the advancing Red Army.