Brothers Harry and Jack leave Manchester for New York City for their annual weekend getaway. But upon arrival, they find a silent, deserted JFK, where the few ground crew they can spot have all been slaughtered. Harry and Jack are military veterans, but theyve never encountered anything like this. As they witness the carnage and stumble across murderous madmen in a post-apocalyptic New York City, it becomes clear that escape is the only optionthat is, if there is anywhere sane to escape to