1 plot. - All-Union Children's Chess Tournament in Moscow; pioneer Kolya Golovko plays with the USSR champion M. Botvinnik. 2 plot. - Excursion of schoolchildren to the Leningrad Botanical Garden. 3 plot. - Children skate on the rink of the Central Park of Culture and Leisure. 4 plot. - Patronage of the pioneers of the collective farm on May 1 over horses: they help the groom in caring for the horses.