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 Aging and outdated, most of the ships plummeted back to Earth long ago.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

Two and a half centuries before the Hell Divers, the Machine War erupted—autonomous killer robots turning Korea into a battlefield that threatened to consume civilization. As the dust settles, three men stand at the crossroads of humanity’s fate. CEO Tyron Red, thrust into leadership of the Industrial Tech Corporation after his father’s death, works to reverse the war’s catastrophic effects while battling enemies, both human and machine, lurking in the shadows.

Ripped from the headlines, the explosive Trackers saga is a realistic depiction of what an EMP attack and the aftermath might look like from one of the genre's leading voices, USA Today best-selling author and former Homeland Security disaster mitigation officer Nicholas Sansbury Smith. This box set includes the entire four-book Trackers series with over 30 hours of post-apocalyptic survival fiction and action. This box set includes Trackers, Trackers 2: The Hunted, Trackers 3: The Storm, and Trackers 4: The Damned.

For a dozen years, villagers along the ancient Da River in Vietnam have feared a nightmarish creature who hunts and consumes human flesh. Only in whispers do they mention its name, The White Ghost. To the United States military, this creature has a different name - Marine Lieutenant Trevor Brett, the chemically engineered experiment gone wrong that they will do anything to hide. Sole survivor of his platoon, Brett has stalked the jungle for prey. But the men who made him into a monster are searching for him, and when they find him, the line between hunter and hunted will be blurred.

On a war torn Earth, the mighty Nova Alliance is the last defense against the treacherous Coalition. At the heart of this defense are the Engines—formidable, genetically enhanced soldiers. Under the command of the legendary Captain Akira Hayashi, the elite Shadow Squad has defended the frontlines for years. But just as victory seems imminent, the Coalition strikes hard, targeting the very sites meant to heal the wounded planet.