In a world where civilization has crumbled and zombies vastly outnumber humans, each day is a struggle for survival. On the brink of surrendering to despair, the tough drifter John Knox is rescued by a motley crew of survivors led by a man named Moses. Initially met with distrust, Knox eventually earns his place within this new makeshift family in the desolate landscape. However, their fragile peace is shattered when a band of crazed raiders launches a brutal assault on their camp, leaving many dead or captured. Knox, along with a handful of survivors who managed to escape, must rally their limited resources—including the use of zombies—to mount a daring, all-out assault on the raiders’ stronghold.