A mysterious virus is affecting millions of people. Three days later, his victims awaken with the sole purpose of spreading the Infection. As the world slides into the abyss, some Infected continue to change, turning into terrible monsters. In one American city, a small group of people fight for survival. Sergeant, tank commander, seasoned by years of war in Afghanistan. Wendy, a female cop who continues to defend law and order in a lawless land. Ethan, a math teacher searching for his missing family. Todd, a high school student who sees his second chance at the end of the world. Paul, a priest, tormented by the question of why God abandoned his children. And Anne, their mysterious leader, has an almost fanatical hatred of the Infected. Together they make their way to a huge refugee camp where thousands of people have found protection. The camp leadership will ask them to complete a mission on which the lives of all its inhabitants depend - to go to the very heart of the Infection.