Two young Muscovites, Tchouk, 7 years old, and Guek, 6 years old, leave with their mother to join their father who is taking part in a distant geological expedition. It is winter, it is cold and the father does not wait for them at the appointed place because in the meantime he has been called for an urgent mission. He sent a telegram to his wife to warn her, but it is the children who received the telegram and they did not give it to their mother...
