In 43 CE, when the centurion Macron is assigned to the lands of the British tribes, he has no idea that in this place, where he has seen everything as a seasoned warrior, he is about to face one of the most difficult campaigns. Macron and his young subordinate Cato must find and defeat the enemy before the enemy grows strong enough to crush the Roman legions.
But the British are not the only enemy confronting Macron and Cato: in the shadow of bloody clashes, a conspiracy against the very Emperor is taking shape.[authors omitted for context]