In Troy, Paris' father King Priam and advisor Antenor debate how to respond to the Greek threat, with Priam advocating peace and Antenor urging war. While Priam attempts to negotiate with Agamemnon, Paris challenges Menelaus to single combat. Menelaus defeats Paris, but is prevented from killing him by Aphrodite, who whisks him away to safety.
Achilles' cousin Patroclus is killed by Hector, the eldest son of Priam and the greatest Trojan warrior. The death of his friend and the promise of glory push Achilles back into battle. Achilles defeats Hector in single combat and drags his body around the walls of Troy.
Priam pleads with Achilles to return Hector's body for proper burial, but Achilles refuses. After receiving a prophecy that he will die if he enters the city, Achilles retreats to his ship. Priam's son Paris shoots an arrow guided by Apollo that strikes Achilles in the heel, killing him.
Following the death of their two best warriors, the Greeks and Trojans agree to a ten-day truce. During the truce, Priam and Achilles' father Peleus meet to mourn the loss of their children. After the truce, the Greeks construct the Trojan Horse, a giant wooden horse filled with warriors. The Greeks pretend to sail away, leaving behind Sinon, a Greek soldier who convinces the Trojans that the horse is a gift.
The Trojans bring the horse into their city, unwittingly allowing the Greek army to enter Troy. The Greeks massacre the Trojans and sack the city. In the chaos, Paris is killed by Menelaus. Aeneas, another son of Priam, escapes with a group of Trojans and flees to Italy.