Episode 8 is the eighth episode of Britannia. It will air in January 2018 on Sky Atlantic and was released online on 18th January.
The battle of wills between Kerra and Antedia intensifies, as the Regni play their trump card. Aulus enlists deadly exiles to find Cait.
Freed from Pwykka, Divis joins with Cait. Sawyer understands that his presence is actually a hindrance to Cait, and bids her farewell. Divis begins to train Cait, but his teachings are proving ineffective and her guilt over her father's departure leads her to fall into depression.
The Regni tribe lay siege to the Cantii tribe's citadel, with the battle grinding to a stalemate. Neither Kerra or Antedia is willing to give ground, and the siege threatens to drag on into winter. In an effort to break the siege, Antedia activates her trump card – an inside man with close access to Kerra.