Veronika and Boris come together in Moscow shortly before World War II. Walking along the river, they watch cranes fly overhead, and promise to rendezvous before Boris leaves to fight. Boris misses the meeting and is off to the front lines, while Veronika waits patiently, sending letters faithfully. After her house is bombed, Veronika moves in with Boris’ family, into the company of a cousin with his own intentions.

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.

Four vignettes on the lives of the Cuban people in the pre-revolutionary era. In Havana, Maria is ashamed when a man she loves discovers how she makes a living. Pedro, an old farmer, discovers that the land he cultivates is being sold to an American company. A student sees his friends attacked by the police while they distribute leaflets supporting Fidel Castro. Finally, a peasant family is threatened by Batista’s army.