WWII, 1945. There are fights for the city on the Danube. The river is mined by the Germans, and this fetters the action of our troops. In addition, a city with a million people was left without food. And downstream are Soviet food barges. The command instructs the reconnaissance group a difficult and dangerous operation — to obtain from the enemy a map of the mined sections of the river, which requires penetrating into the city captured by the Germans.

An inspector is torn between her conviction of there being a need to reconstruct a factory, and a love interest who asks of her not to do that in order for him to further his career.

Sergei, an aspiring musician, accidentally meets a deaf-mute girl, Natasha, and falls in love with her. He has to change a lot to prepare himself for a new relationship with a different and very vulnerable person. Natasha is like an alien or an alieness with whom Sergei has to find a completely new language to speak. Natasha tries hard to understand his musical world. The problem is that Natasha lost her hearing during the war and associates sounds with fear and pain. Even a symphony concert is torture for her.

About the family of the old man Achila-Buva, about his children and grandchildren living in an Uzbek village, about an old plane tree covering the saplings with its branches.

On the eve of the New Year, a Belgian plane carrying a group of Antarctic researchers crashes in the area of the Pearl Mountains. Only the Soviet expedition responds to their call for help. For several days, Soviet pilots, despite the weather conditions and risking their own lives, set out in search of the Belgians...