In this episode Alberto Angela takes us to discover one of the most famous and important characters of the ancient world: Alessandro Magno. Our journey begins in Pompei: inside the house of the Faun there is one of the most famous mosaics in history: that of the "Battle of Issus" which illustrates the clash between the army of Alexander the Great and the Persian army of Darius. Venerated by his soldiers for his courage and generosity, but also capable of excesses and uncontrollable outbursts of anger, this young ruler originally from Macedonia, a small kingdom in northern Greece, represented the ideal model for centuries of the great leader, fueling legends and tales from the Mediterranean to India.