"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 Aging and outdated, most of the ships plummeted back to Earth long ago.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. When...

Tired from years of fighting, Xavier passes the crown to a younger Hell Diver, Kade Long, and then sets off o the Sea Wolf with Magnolia to find Michael and his family. But the journey will push them both to their limit.