An encounter with the gods binds the fate of young herdsman Paris to that of his home city of Troy, and when he is granted the honour of visiting Sparta as a guest of King Menelaus, he falls in love with the beautiful queen Helen, with far-reaching consequences that threaten to bring an empire to its knees. David Farr's historical epic, starring Louis Hunter, Jonas Armstrong, Bella Dayne, David Threlfall, David Gyasi and Joseph Mawle.

Helen and Paris reach Troy, to face the alarming consequences of their elopement. Helen's husband rages at her disappearance, and his brother Agamemnon inspires a Greek army to attack Troy and get her back. Odysseus, King of Ithaca is sent for, but he is too unwell to join the coalition. Priam and Hecuba debate whether to send Helen back or face the repercussions. In Aulis, the winds aren't in their favour and the fleet can't leave. The goddess Artemis presents Agamemnon with an agonising dilemma.

With the Greeks' grip on the city tightening, Hector and Paris embark on a dangerous journey to a nearby ally to ask for help. Relying on each other for survival tests and strengthens their bond, but a familiar face reappears to tell Hector the disturbing truth about his brother.

Achilles' shock attack on Troy's ally Cilicia devastates the Trojans and puts the spotlight on Helen. Andromache receives both good news and bad. A bitter dispute erupts between Agamemnon and Achilles.

Paris finds himself on the run as a fugitive, hunted by Greek forces intent on avenging the slight that sparked the flames of war. Seeking a safe refuge, he returns to his shepherd roots and the hills where he grew up. Meanwhile, back in Troy, Helen is left without a single ally as Pandarus's investigation gathers momentum, and the Trojans try to exploit divisions among the Greeks.

The Trojans receive a message from the gods and embark on a daring raid with new allies. Helen's situation remains precarious. Achilles is provoked into returning to battle.

King Priam takes his life into his hands to visit Achilles. A truce is agreed, but will it hold? Helen faces a personal crisis as her relationship with Paris comes under strain.

The Trojans are stunned to discover that all that remains of the Greek army in Troy is an offering to the gods in the form of a wooden horse. They believe the war may finally be over, and celebrations begin. But perhaps too soon.