On the hunt for a rogue Roman officer, something goes terribly wrong and they are left stranded in the mountains, their escape route cut off. Only then does the true danger of their mission reveal itself.

Caught in the crossfire not just of the mountain tribes, but of the vicious power politics of Rome, they must use all their cunning and guile to save themselves from death’s icy clutches...

The gripping final instalment of the extraordinary, brutal, visceral historical epic series.