Documentary showing the Czechoslovakian political landscape in March 1968, when president Antonin Novotny, a hardline Stalinist, stepped down and moderate communist Ludvik Svoboda was elected. Five months later, in August 68, the Prague Spring would end with the military intervention of the Warsaw Pact.

A unique document of the 1968 Soviet invasion of Czechoslovakia, what began as a documentary about the liberalization of Czechoslovakia evolved into a record of the entry of Russian tanks into Prague.