Through Icy Haze (1965)

Original title: Сквозь ледяную мглу

After the events of 1905, the proletariat slowly retreated with battle. The Lenin headquarters of the leadership of the revolution was moved to Finland. There Lenin and Krupskaya live illegally in safe houses. Vladimir Ilyich works on his articles, occasionally his associates visit him, sometimes he goes to the city for meetings with his party comrades — Gorky, Kalinin, Krasin, and others. By all possible means, Lenin directs the activities of the Bolsheviks in Russia...