With airplanes falling out of the sky and all things electric rendered useless after a mysterious flash, skills instilled by Jackson's marine father move front and center. With a fierce determination to keep his 13-year-old sister, McKenzie, and nine-year-old brother, Cooper, safe, the high school freshman is compelled to leave their Irving home in the shadow of the DFW airport. Thrust into a lawless, chaotic world, he's guided by an ever-changing cryptic note that leads his growing troupe along the King's Highway in search of their grandparents. Bullies, Russians, wild animals, gangbangers, and kidnappers thwart their progress while a lack of drinkable water and food is a constant concern. Will he ever find a safe place?