He thought he was done with the killing. But old habits die hard.

Kyle Payne thought he'd left his deadly past behind—until he is targeted by mysterious assassins posing as FBI agents.

Forced into an uneasy alliance with Special Agent Carrie Walker, who is also being targeted, Payne sets out to find out who is after them and why.

The trail leads to rogue CIA operative Michael Dresden who is on a vendetta against the highest levels of United States government.

Payne and Walker discover Dresden's meticulous plan involves weaponized drones and a skilled team of elite mercenaries operating from a heavily armed compound in the remote Idaho wilderness.

As the clock ticks down, Walker faces an impossible choice: she can follow official protocol, or she can embrace Payne's lethal skillset and prevent a devastating attack on American soil.