When former special operations commander Mason Kane witnesses the assassination of a powerful diplomat in broad daylight, he is framed for the murder and becomes the most hunted man in the world. Forced to stay one step ahead of international intelligence agencies, mercenaries, and a secret organization known as Vanguard, Mason uncovers a conspiracy capable of triggering a global war. To stop it, he must return to the violent life he left behind and confront enemies who know every move he is likely to make.