Becoming one of the US Forest Service's elite smokejumpers has been Jake Slade's dream. Parachuting into the path of a raging fire and beating it into submission isn't for the faint of heart, but Slade has never backed down from a challenge. After surviving the grueling six-week training course, he thinks he's ready for anything nature has to dish out. What he hasn't considered is man-made danger, in the form of an old friend turned CI and the DEA Special Agent determined to hunt him down…using Slade as the tracker. It's an offer he wants to refuse, but with the promise of prison time being expunged from his record, Slade agrees, hoping to finally put to rest the demons of his past. But what begins as a straightforward search-and-rescue mission swiftly turns into a harrowing run for his life.

Adam Hayes has stepped away from the field for the last time. He's promised his wife that he won't put his life on the line any more, and there's nothing that will make him break a promise to her. Well, almost nothing. With America withdrawing from Afghanistan and the Taliban closing in, Abdul Nassir reached out to his old friend. The Afghan is desperate to flee his homeland. Like most of his countrymen, he is petrified by the Taliban takeover, but he also can't trust the Americans. He’s the only eyewitness to a massacre committed by a rogue team of CIA contractors. Not only can he identify the butcher who directed the bloodbath, he also has photographic proof. He’ll only be safe when those pictures are made public. Now, there’s just one man he can trust to get him to safety --- Adam Hayes.

The most pressing issue on Adam Hayes' mind is planning his son's upcoming fifth birthday party. After years of operating in the world's most dangerous spots for Treadstone, he's ready to call it quits, but the feeling isn't mutual. Levi Shaw, Treadstone's director, calls Hayes back for one more mission. "It's a walk in the park. You don't even have to go in with the strike team. I just need you to set up the safe house. You'll be home in time to pick up the birthday cake." But nothing is ever easy where Treadstone is concerned. When the mission is blown, only Hayes is left alive, and it seems that everyone is determined to correct that oversight.

After the revival of Operation Treadstone, former agent Adam Hayes has retreated to Africa, determined to leave behind the black-ops CIA program for good. But his quiet life in Africa changes irrevocably when, while attempting to complete a charitable mission in Burkina Faso, Hayes is attacked by extremists. Forced to make an unexpected landing, his plane is damaged. In order to get back in the air, Hayes agrees to transport a passenger --- Zoe Cabot, the daughter of a tech baron --- to a small coastal city. But just after Hayes completes his flight, Zoe is kidnapped. During his search for Zoe, Hayes funs afoul of multiple enemies, including a rogue Treadstone operative, all of whom are searching for him.

Operation Treadstone has nearly ruined Adam Hayes. The top-secret CIA Black Ops program trained him to be an all but invincible assassin, but it also cost him his family and any chance at a normal life. Working as a carpenter in rural Washington state, Adam thinks he has left Treadstone in the past, until he receives a mysterious email from a former colleague, and soon after is attacked by an unknown hit team at his job site. Adam must regain the skills that Treadstone taught him --- lightning reflexes and a cold conscience --- in order to discover who the would-be killers are and why they have come after him now. His search will unearth secrets in the highest levels of government and pull him back into the shadowy world he worked so hard to forget.