Cale, a U.S. Army Soldier, is in the middle of one conflict, just as another more terrifying one has begun. His nightmares have become a reality; the world it seems has gone insane. The insurgents are the least of his worries now. Instead, the undead have become the new enemy. Fighting for his life at every turn, and losing friends along the way, he must trek across the globe just in the hopes that he will hold his wife and daughter in his arms again.