Plot: Six years after the fall of Mexico, the conquistador Francisco Pizarro, exploring south of the equator, uncovers another civilization unknown to the European world: the empire of the Incas, which extended 3,000 miles from Ecuador to Chile. Michael Wood recounts Pizarro's daring march into Peru with fewer than 200 men and tells the almost incredible tale of his capture of the Inca Atuahuallpa and his promise to ransom himself with a roomful of gold