When the news comes of Roman invasion, Morcant the druid, also known as brother of the lynx, heads for home only to find it destroyed, the flames reaching the sky. Overcome by a thirst for vengeance he joins the army of Caradoc, who the Romans call Caractacus. As a druid, he becomes a trusted advisor and his advice is to head west with a view to uniting the disparate tribes. After their main settlement is lost, the bedraggled host head west into action and adventure where not all tribes are willing to fight, and some are too terrible to make allies.
All they can do is survive and perhaps in so doing, the land of their fathers will also survive.