It is 2016, four years after the apocalypse that robbed Alexia McQuillan and her son, Hawk, of their happy lives. After her husband, David, contracts a deadly virus that transforms him into a violent zombie intent on killing her, Alexia is forced to make an unimaginable choice. Now, with her husband dead and their safety in jeopardy, Alexia and Hawk must embark on a dangerous journey across Americ...