Book 3 in the series.
"Deep in the heart of the jungles of Columbia, highly trained assassin Xavier Greene is called back from his search for criminal mastermind James Devos. A series of bombings have left chaos and terror in their wake, and their next target is London. In a desperate race against time, Xavier finds himself pursuing Francisco Ortega, the leader of the Firefly Collective. But, his efforts are complicated when he finds himself at odds with local law enforcement, who disapprove of the trail of bodies left in his wake."
Once again, Stacy Martinez plays a major role.