[Machine Translation] The echo in the dust is either a death call or the sound of a coffin being dragged.... The socially-conscious director Carlo Rizzani invites Lou Castel (The Robber Barbarian) and the brilliant Pasolini to create this psychedelic Western! --San Antonio, Missouri, where Americans and Mexicans are fighting over land. An agreement is made to put an end to this long-standing dispute, but it turns out to be a set-up. Pasolini plays a Mexican revolutionary.