The film tells about the festival of the Finnish workers - 30th Anniversary of legal activity of the Communist Party of Finland.
Types of Helsinki - the capital of Finland. Demonstration in the streets of the city, dedicated 30 years of exit from the underground Communist Party of Finland. Speech by Vice-Chairman of the Communist Party Tayayvo Sinasalo and other speakers. Meeting of the Congress of the Democratic Women's Union of Finland. Meeting people's democratic movement in Finland. Laying a wreath at the monument to the Finnish Red Guards, who died in 1918. Exhibition history of the Communist Party of Finland in Helsinki.