The final part of trilogy about the life of a young factory worker, Maxim. Following the Russian Revolution, Maksim is appointed state commissar in charge of the national bank. With great efforts, he learns the complexies of the banking trade and begins to fight off sabotaging underlings. Dymba, now a violent enemy of the Republic, tries to rob a wine store but is arrested with Maksim's help. Maksim also exposes a conspiracy of a group of tsarist officers who prepare an attempt against Lenin. He then joins the Red Army in its fight against the German occupation.

The second part of trilogy about the life of a young factory worker, Maxim. In July 1914, the Bolsheviks and Mensehviks compete for representation of the working-class in the Duma. Maksim, who just returned from exile, calls the workers to strike as a protest against the firing of six of their colleagues. The traitor Platon Dymba assaults Maksim, wounding him severely. When the strike unfolds the workers demonstrate by the thousands, the news of the outbreak of World War I suddenly arrives. Maksim gets drafted.

The daredevil pilot Sergei Belyaev takes a risk flying a plane which is not properly maintained and crashes dangerously, landing in hospital, his plane going up in smoke. The aviation student Galya Bystrova, having a crush with Belyaev, unfortunately tends to imitate him in the air. Later, heeding the advice of the wise headmaster Rogachev, they become experienced pilots. Bystrova is assigned to Pamir, and Rogachev, in love with her, is sent to Sakhalin.

An ideologically committed Red Army soldier returns home from the war and takes up a new struggle with the aim of collectivizing the land of a wealthy peasant.

The film tells about a band of demobilized Red Army men and two civilians who cross a Middle Asian desert. They are forced to do battle with superior forces of Basmachi rebels for the dry draw-well.