Seventeen-year-old coder Jinx Marshall grew up spending weekends drilling with her paranoid dad for a doomsday she s sure will never come. But all that disaster training comes in handy when an explosion traps her in a burning building. Stuck leading her headstrong stepsister, MacKenna, and her precocious little brother, Charles, to safety, Jinx gets them out alive only to discover the explosion is part of a pattern of violence erupting all over the country. Even worse, Jinx s dad stands accused of triggering the chaos.