The film is based on Homer's sprawling epic poem 'The Iliad'. It tells the story of Paris, Prince of Troy, who falls in love with the wife of King Menelaus of Sparta, the beautiful Helen.
He persuades her to leave her husband and go back with him to Troy, sparking a war between the Mycenaeans, led by Menelaus's brother Agamemnon, and the armies of Troy, led by Prince Hector.
The City of Troy, governed by King Priam has never before succumbed to siege or battle, but Agamemnon and the Mycenae Greeks have a formidable ally: the great and seemingly indomitable Achilles.
In Greek mythology, Achilles was the strongest warrior and hero in the Greek army during the Trojan War. He was the son of Peleus, king of the Myrmidons, and Thetis, a sea Nymph.
In an attempted to make him immortal his mother dipped him in the River Styx, but left the heel she gripped him by vulnerable, Because of this, Achilles is killed when shot in the heel by an arrow.
In the The Iliad, the Greek Gods were also involved. The gods also took sides, notably Hera, Athena, and Poseidon for the Greeks, and Aphrodite (who had a son, Aeneas, by the Trojan Anchises, grandson of Assaracus), Apollo, and Ares for the Trojans.