The world is not the same since the Pandoravirus outbreak changed the essence of human nature. Those affected by the disease are consumed by adrenal rage. They erupt in violence with the slightest provocation. And now, infected scientist Emma Miller is forging them into an army of merciless killers marching across America. Emma's twin sister, neuroscientist Isabel Miller, is desperate to avert the chaos that threatens to engulf civilization. But her...