Biographical film story about the first Russian space explorer, inventor scientist, rocket-maker K. E. Tsiolkovsky.

A Soviet violinist, during a concert tour in Japan, meets a little milk carrier named Taro. Upon returning home, the violinist tells Moscow schoolchildren about the lonely little Japanese boy who dreams of corresponding with Soviet kids. And 10,000 pioneers offered Taro their friendship...

England. The old and sick artist Symonds Kendle, fleeing from the insistent claims of his children to his remaining paintings and drawings, goes with his granddaughter Felicity to another city to a friend. But on the way the artist falls ill and ends up in a small station hotel. Felicity and Stan, the son of the innkeeper, search for boxes of Simon's paintings that have fallen into another station.