The first attack catches the Northeast unprepared. Panicked millions gridlock roads as Ray Bramlett escapes New York, barely ahead of a radioactive cloud. A thousand miles west, Karla Becker stares in horror at the televised images—sure the aftermath will bring worse. While Karla hunkers down at home, trusting her preparations, Ray seeks safety among his Tennessee friends. Each of their strategies buys time, but as social order collapses around them, both plans go awry. Now, survival means confronting a world teeming with sudden death and learning that no sanctuary remains safe forever.