The invasion of Britannia has been bloody and relentless, and still the barbaric island people have not been fully conquered. With grievous losses amongst the Second Legion's men in a campaign of coordinated enemy attacks, the approaching winter could be catastrophic. When a unit of battle-hardened soldiers is dispatched to rout the native warriors, amongst them is Figulus, an optio whose local knowledge makes him doubt the Commander's confidence in a speedy and successful mission.

The unit is deep in enemy territory when it makes a horrifying discovery: of the maimed bodies of brutally tortured Roman prisoners. It's clear what a dreadful fate awaits Figulus and his comrades unless they can outwit and repulse the Britons...