Day zero

"Seventeen-year-old coder Jinx Marshall grew up spending weekends drilling with her paranoid dad for a doomsday she's sure will never come. She's an expert on self-heating meal meal rations, Krav Maga and extracting water from a barrel cactus. Now that her parents are divorced, she's ready to relax. Her big plans include making it to level 99 in her favorite MMORPG and spending the weekend with her new stepbrother, Toby. 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"--Dust jacket.