During the night, the remaining rafts are swept away by the rising river. Time has run out for the scouting mission, and Ursúa decides to return to Pizarro's group. Aguirre leads a mutiny against Ursúa, telling the men that untold riches await them ahead, and reminding them that Hernán Cortés won an empire in Mexico by disobeying orders. Ursúa attempts to put Aguirre in chains, but he and a soldier loyal to him are shot. Inés cares for Ursúa. Aguirre coerces the soldiers to elect the fat, lazy Don de Guzmán as the new leader of the expedition. Aguirre proclaims de Guzmán emperor of the new country and declares Philip II dethroned. A farcical trial of Ursúa results in his being sentenced to death, but de Guzmán surprises Aguirre by granting Ursúa clemency.