When an elite US soldier turns terrorist, only one man can stop him in the New York Times bestselling author's action-packed thriller series debut.

CIA agent Ryan Kealey has no time to wrestle his demons. Former US soldier Jason March, one of the world's deadliest assassins—and Kealey's former protégé—is now working with a powerful terror network whose goal is nothing less than the total annihilation...

Tensions between Pakistan and India are at an all-time high. To complicate matters, twelve American climbers have disappeared in Pakistan's Hindu Kush range. As the conflict escalates, the U.S. Secretary of State's motorcade is ambushed on the outskirts of Islamabad. When her back-up team arrives, they discover a disastrous scene: dozens are dead, including seven diplomatic security agents, and the secretary of state has vanished without a trace....

After a terror attack during a charity gala in downtown Baltimore claims dozens of innocent lives, including the wife of CIA Deputy Director John Harper, Ryan Healey is called in to investigate and is swept into an unimaginable conspiracy that suggests American may in fact be its own worst enemy.

"Ryan Kealey has no doubt that the forces seeking to tip this teetering world into chaos are just getting better. Better equipped, better organized, and, most terrifying of all, more patient. And despite all the ELINT, the all-seeing electronic intelligence gathered at Langley, nothing stops a devastating attack from ripping through the heart of San Antonio, Texas. Wrenched from retirement to work the Texas tragedy, Kealey learns of a far greater...