Tensions are on the rise after a BATF agent's cover is blown during a gunrunning bust in the Florida Keys. There's a leak within the Feds, and Mack Bolan is sent in to search and destroy before more lives are lost. But with highly trained ex-marines running the guns and dedicated to eliminating loose ends, Bolan knows infiltrating the unit could be a fatal assignment. With nothing to lose, the mercenaries are ready to declare war on whoever gets in...