When the dead rise, Ex-Special Forces soldier Erik Tragger flees to the mountains to wait out the end of the world. Cut off from civilization for months, he returns to find cities ruined and ruled by the walking dead. Tragger reluctantly joins a group of survivors with a plan: flee to Portland where humanity is carving out a stronghold. But along the way they face opposition at every turn the dead, rogue military forces, looters... and a new enemy more dangerous than any they have yet encountered. Among the stumbling, mindless zombies walk the ghouls. The ghouls are living dead creatures that not only strategize and plan, but also possess the ability to guide their shambling brothers. With weapons and supplies dwindling, Erik and his companions will faceoff against millions of the dead who have but one goal: complete eradication of the last of the living.