It's been seven years since the Upheaval. Seven years of fighting the hordes of the undead. John Talon and his family are hoping to finally settle down and start their lives over again. But in the grasslands of Iowa, a new danger has emerged. A new form of the Enillo Virus, unlike any seen before, threatens to unravel the fragile new country. John, Charlie, Duncan, and Tommy will find their skills put to the test as they face off against the worst of the virus.