Communism spread to all of the continents of the word, lasting through four generations and over seven decades. Hundreds of millions of men and women were affected by this political system, one of the most unjust and bloodiest in history. Using newly discovered propaganda films and archival photos, these four episodes explore the mysteries of this totalitarian political machine that lured its share of important followers into the fold. Known as the red church, communism seduced its ardent followers like some earthly religion.

A major political, historical, human and economic fact of the 20th century, the Gulag, the extremely punitive Soviet concentration camp system, remains largely unknown.