
Socialism's singular idea: that mankind would truly thrive only if property were shared by all.

Karl Marx said a workers' revolution was inevitable but by the end of the 19th century, it had failed to materialize. In response, some of his followers began developing an important strain of Marxist thought that would deeply affect America and the West.

Italian communist Antonio Gramsci concludes that to succeed, Marxists must overthrow not just capitalism but Western civilization. Scholars of the Frankfurt School take refuge in Los Angeles - ground zero for the American culture they hope to destroy.

In the 1960s, the 'long march through the institutions' begins: a systematic effort to control higher education and other key institutions. Herbert Marcuse emerges as 'the Godfather of the New Left,' inspiring a new generation of American socialists.