"After an assassination mission ends in chaos, he vows to hang up his holster. But when his former partner disappears while tailing a Russian explosives expert, Clark picks up his guns and dives back into the life he thought he left behind. Following a trail of bodies to Central America, Clark will stop at nothing to free his colleague. But while he’s busy squeezing the trigger on his rescue mission, a plan for a devastating act of terrorism brews in the wings."