A class of young schoolchildren is going on a trip by train, together with their teacher. At the station, two boys - Milan and Pavel, help a blind man find his way. In the meantime, their train leaves. The guard, who notices the boys and what they have done, helps them get onto another train to catch up with their class. The boys have a chance to see the work of the pointsmen and the engine driver, and to go for a ride with the goods train. Eventually they join their class again.
Vladimír Prokeš, Josef Bejvl, Lubomír Spíšek