Twenty-four hours. That's all it takes for the lives of two young people to be changed forever. Alex Chin has the world on a plate. A football hero and homecoming king with plenty of scholarship offers, his future looks bright. His tutor, Samantha Dixon, is preparing to graduate high school at the top of her class. She plans to turn her NASA internship into a career. When a football accident lands Alex in the hospital, his world is turned upside down.

In the fog of war, when friends can appear as enemies and enemies as friends, only one thing is certain—when in doubt, there is no doubt.

Sam Easton—a true survivor—is home from Afghanistan, trying to rebuild a life in his hometown of LA. Separated from his wife, bartending and therapy sessions are what occupy his days and nights. When friend and colleague Melody Traeger is beaten by her boyfriend, she turns to Sam for help. When the boyfriend turns up dead the next day, a hard case like Sam is the perfect suspect.

More than two centuries after World War III poisoned the planet, the final bastion of humanity lives on massive airships circling the globe in search of a habitable area to call home. Aging and outdated, most of the ships plummeted back to Earth long ago. The only thing keeping the two surviving lifeboats in the sky are Hell Divers - men and women who risk their lives by skydiving to the surface to scavenge for parts the ships desperately need.

1991. A restless young man called Dox is back home in Texas. His friends have missed him, and his mother and sisters need him. But after four years as a Marine and another two as a CIA contractor fighting the Soviet Union alongside the Afghan mujahideen, small-town life in Abilene is a suffocating dead end. Another secret war, this one in Southeast Asia, offers a big payday and the solution to his family’s troubles. But secret wars are never what they’re billed to be, and Dox is about to get the education of his young life.