The walking dead now rule the world, leaving the few survivors facing extinction in what remains. One group of survivors settles in the mountains, one roams the countryside for shelter, and another lives safely behind high walls in a haven.

The zombies are not humanities only enemy, because humanity, as it has always been, is its own worst enemy.

The three groups of survivors will meet in a clash in which only one thing is certain—the dead will gain numbers while the living dwindle.

This struggle will settle Ralph and Sarah's fate.