Before he was betrayed, Caine was still an assassin.... As the CIA's deadliest operative, Caine is tasked with eliminating America's most dangerous enemies. But Caine is a professional. His missions of death have rarely been personal. Until now. A fellow operative is killed on an icy New Zealand mountain. A shipment of vital medicine disappears from a UN cargo container. And a CIA cargo plane is shot down in the vast Empty Quarter desert. These seemingly unrelated events are all linked to a shadowy operation, known only as SANDFIRE...and if exposed, the fallout could engulf the Arabian Peninsula in war.

Charles Raynaud has found the perfect cover for his smuggling operation running out of Mexico, because how many customs agents are going to want to inspect a carton of venomous snakes? When Raynaud runs into his old Yale buddy Richard Pierce, a chance to play bodyguard feels like even easier money.

Someone is killing Americans. The suspect is connected at the highest levels. Confronting him is impossible. Still, justice must be served…Long-retired Navy SEAL Thomas “T-Bone” Marks left the warrior business behind years ago. He’s now a happy, small-town teacher—until the wheels come off his world. A clandestine intelligence agency offers to help Thomas reclaim his life—in exchange for a few days of his time.

The Hai Long is 110 meters long, and glides silently beneath the waves at incredible speeds. It is the most lethal nuclear submarine in China’s naval arsenal. And only one woman knows how to find it. CIA Paramilitary officer Thomas Caine is assigned to bring in a terrified Chinese defector who claims she can track the stealthy submarine’s movements.

Colter Shaw is a career "reward-seeker", making his living traveling the country and locating missing persons, collecting reward money in return. So it is not unusual when a wealthy entrepreneur hires him to track down his wife, an enigmatic artist who vanished one month before. As Shaw begins to investigate, he suspects that she was fleeing a bad marriage, and he follows her trail to an artists' retreat in Indiana. The case takes one surprising turn after another, and soon, Shaw begins to wonder if this mysterious woman is more of a captor than a captive.