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.
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.
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.
After their long ordeal, Cait and her father finally arrive at the safety of the Cantii citadel, but a demon is on her trail.
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.
The battle of wills between Kerra and Antedia intensifies, as the Regni play their trump card. Aulus enlists deadly exiles to find Cait.
The end appears to be close for the Cantii, and Aulus unveils how the Roman Empire truly conducts business.
Two years after the invasion, a dead man awakens who could spell the end of everything.
The Dead Man sends Hella on a mission. Phelan's new life comes crashing down. Rork's suspicions about Veran lead him into a duel.
Veran gives Ania a terrible choice. Harka brings Phelan under his spell. The next stage of Cait and Divis's prophecy begins.
Hella makes Aulus an offer she knows he can't resist. Phelan fulfils his mission. Cait and Divis's dreams spell new danger.
A dream causes tension between Cait and Divis. Harka sends Love on a heart-breaking mission. Veran commits the ultimate betrayal.
Philo and Brutus play a prank, but their timing couldn't be worse. Harka sends Veran a message.
Vitus returns with a message for Aulus. Ania is placed in an impossible situation. The Traveller tracks down Lucius.
Aulus outrages Domitius with a confession. Andra discovers the truth about her family. Divis tries to use his powers on Love.
Divis gets one last chance to prove himself. Cait's newfound happiness is cut short. 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.
Aulus has built himself a smart villa overlooking the new town of Verulamium. But underneath, Druids and Celtic tribes still resist power.
Aulus struggles to remain in control now that Hemple is on the scene. The Druids are splintered by the betrayal of the Chosen One.
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 of travellers strike a deal with Hella. Still under Hemple's hex, Ania returns and leads the gang on a dangerous path.
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.
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.
Still searching for Lucius and his knowledge of the Spear, Cait takes the fight to the redoubt, and to all those who are waiting for her.
Go behind the scenes of Britannia as cast and crew talk about their experiences creating the primal world of the spellbinding TV series.
The creators of Britannia speak about how Caesar’s unsuccessful invasion in 55BC would inspire the story of the TV series.
