Four geologists are searching for diamonds in the wilderness of Siberia. After a long and tiresome journey they manage to find their luck and put the diamond mine on the map. The map must be delivered back to Moscow. But on the day of their departure a terrible forest fire wreaks havoc, and the geologists get trapped in the woods.

When the Snow Queen, a lonely and powerful fairy, kidnaps the human boy Kay, his best friend Gerda must overcome many obstacles on her journey to rescue him.

The best foremen of the two competing collective farms, Olga Stepanova and Maxim Orlov, have long been in love with each other. But between the bride and groom there is a quarrel on the industrial soil, and everything goes to the gap.