In 43 AD, a nation is rocked by the arrival of an Empire.

Having marked Rome's arrival with blood, Aulus sends envoys to parlay with the tribes of Britannia, while also looking to learn more about the Druids.

The end appears to be close for the Cantii, and Aulus unveils how the Roman Empire truly conducts business.

After their long ordeal, Cait and her father finally arrive at the safety of the Cantii citadel, but a demon is on her trail.

Philo and Brutus play a prank, but their timing couldn't be worse. Harka sends Veran a message.

King Pellanor disowns Kerra and leaves her life in the hands of the Druids. But the gods' judgement is not what he expected.

The gods have spoken, but Kerra must decide if she will accept their ruling. Antedia seals an alliance with Rome - on one condition.

The battle of wills between Kerra and Antedia intensifies, as the Regni play their trump card. Aulus enlists deadly exiles to find Cait.

Vitus returns with a message for Aulus. Ania is placed in an impossible situation and The Traveller tracks down Lucius.

Aulus outrages Domitius with a confession and Andra discovers the truth about her family. Divis tries to use his powers on Love.

Divis gets one last chance to prove himself. Meanwhile, Cait's newfound happiness is cut short as Phelan tries to right his wrongs.

Veran and Harka face each other in a challenge only one of them can survive. Cait is forced to face her destiny.

Cait and her father seek shelter in the ruins of their old home, where she is visited by someone she never expected to see again.

Hella makes Aulus an offer she knows he can't resist. Phelan fulfils his mission and Cait and Divis's dreams spell new danger.

A dream causes tension between Cait and Divis. Harka sends Love on a heart-breaking mission and Veran commits the ultimate betrayal.

Two years after the invasion, a dead man awakens who could spell the end of everything.

Veran gives Ania a terrible choice. Harka brings Phelan under his spell and the next stage of Cait and Divis's prophecy begins.

The Dead Man sends Hella on a mission. Phelan's new life comes crashing down and Rork's suspicions about Veran lead him into a duel.

In the wilds of Britannia, Cait considers her next move, while Ania and Willa broker a meeting between Veran and Aulus.

Aulus is reborn, but his destiny remains unclear. Cait is able to locate her father, but she can't free him from the Roman camp alone.

Aulus struggles to remain in control now that Hemple is on the scene. The Druids are splintered by the betrayal of the Chosen One.

Cait is shocked by the revelation that a traitor is in their midst. Hemple, still with Amena at the Villa, plans another feast to satisfy Lokka's hunger.

Aulus hears Widicus's concerns about the behaviour of the new arrivals. Cait and Antedia continue their partnership.

Aulus returns from his trip to the Underworld. Willa reveals that if Cait secures the Spear of The Silver Dawn then the tribes will be united.

Cait and her band continue their quest to reach Lucius because of his knowledge of the Spear. Hemple is furious that Veran seems to have got the better of her.