Marker interweaves footage from the Vietnam War and the antiwar protests in the U.S., May '68 in Paris, the Soviet invasion of Czechoslovakia, Salvador Allende and the coup in Chile, Che Guevara and Régis Debray in Bolivia, the Shah of Iran, Fidel Castro, et alia.

Official images, film clips, news coverage trims and neglected reels comprise the basic materials of this major fresco, which concludes with the following credit: "The true authors of this film are the countless cameramen, technical operators, witnesses and activists whose work is constantly pitted against that of governments, who would like us to have no memory."