The Coffin Bound Kings.

After going deep undercover to wage an all-out war of espionage and savagery against the terror of gangland mafia, two rogue military operators turned PTSD outsiders, find themselves spiraling out of control when loyalties and blurred identities push them to the breaking point. And when those deemed rats are hunted to the unforgiving moral depths, they will collide in an epic battle for survival.