Detective Michael Bennett has never been more alone, or more at risk. Mary Catherine is on the other side of the world, and Seamus is recovering from a stroke when a firestorm on the subway starts a horrific series of disasters. New York City is under siege and it's worse than 9/11, worse than Hurricane Sandy. Worse than anyone could possibly imagine. A mysterious symbol appears at every disaster scene, but as soon as Bennett discovers a lead, they wind up dead. It's a race against time to stop the villains in this deadly nightmare