Blady and Roversi are guided to the discovery of Mexico City by Pino Cacucci and his wife Gloria Corica, great experts on Central America. The capital, where they also meet the writer Paco Ignacio Taibo II, is one of the most populated and polluted metropolises in the world, but also a place full of attractions, from the Plaza of the Three Cultures to the great Museum of Anthropology.