A three-part account of communism's twentieth-century record, tracing the ideology from Marx and Lenin's theoretical foundations through its violent application under Stalin, Mao, and Pol Pot. The series lays out the mechanics of each regime: collectivization famines in the Soviet Union, the Cultural Revolution's purges in China, and the Khmer Rouge's killing fields in Cambodia, tallying a death toll the film puts above 120 million. Archival photographs and footage of gulags, show trials, and mass graves anchor the narration, which moves country by country rather than treating communism as a single uniform story. The throughline is the gap between the promise of equality and the machinery of terror and famine used to enforce it. Rather than a single biography or event, this is a survey of how one political idea produced strikingly similar patterns of violence across different countries and decades, from Eastern Europe to Southeast Asia.