A female correspondent of the newspaper Pravda Vostoka in the family of locomotive engineer G. Ya. Lukov; viewing family photos of the Lukov family. G. Ya. Lukov's son, who works at a factory in another city, writes a letter to his father. A group of men repairing the locomotive. A poster: 'Lukovets is a locomotive engineer who mastered the highest wisdom of locomotive work.' Young locomotive engineers, Komsomol members, competing in labor with G. Ya. Lukov.