In one of the quiet cozy alleys of old Moscow lives a talented puppet master. He has a faithful friend Christopher, a son Kuzya and a lot of dolls. Unexpectedly, a sweet and gentle girl, Viktosha, appears in the house, whom both father and son, and even the dolls, have fallen in love with.

A biographical film about the life of the great Russian scientist, inventor of rocket technology and the founder of theoretical astronautics — Konstantin Tsiolkovsky, the hard spiritual work of the thinker, overcoming the stagnation of the surrounding and dramatic events of his family life.

1945. Soviet offensive is approaching Cracow. Local resistance cooperate despite political differences to save the city from destruction planned by Germans.