When America lies in ruins, what can one man do?Oz Porter, a prepper and former Marine sniper, has led his people into the Appalachians, where they create a refuge, a place they name Endurance. Building log cabins for shelter, trapping and hunting in the forest for food, they manage to scrape enough to live a meagre existence. But how will they combat the new enemy?When people lose everything, who will keep them safe?They are a force controlled by...