Aulus (David Morrissey) is one savvy Roman general.

Rather than embarking upon a murderous rampage, his plan to divide and conquer involves teaming up with either one of the rival tribes in an effort to quash the other.

But will he choose the Cantii or Regni?

The decision is taken out of his hands when King of the Cantii, Pellenor (Ian McDiarmid), rejects his attempts to parlay, but his daughter Kerra (Kelly Reilly) secretly tries to strike her own deal.