Livelong. Once thought to be a miracle drug that enhanced human beings beyond imagination, in reality, it transformed them into feral monstrosities that tore the world asunder. With their enhanced durability and desire to consume, the mutants devoured millions and, one by one, the world powers fell. The humans who survived fled the cities, hoping one day that they would rise again to reclaim their lost lands. In the year 2115, sixty-five years after the fall of the Old World, Jason Cooper thought his idyllic lifestyle in the walled settlement of Shackford would last forever, but a mutant attack brings that to a swift end. Jason embarks on a journey to find his missing family while fighting for survival against the horrors of the new world, from the chillingly deserted Texan wasteland to the reclaimed city of New Dallas ruled by the enigmatic King Mercer.