Mack Bolan makes a hard probe into the ritualized execution of four U.S. border patrol agents and a U.S. Marshal. His target is a cartel across the border with a hand in just about every illegal activity--drugs, guns, whatever produces lots of easy dinero. Convinced that there are treasonous Americans in the mix, Bolan becomes a one-man blitzkrieg across the Rio Grande, kicking butt and taking names. He goes undercover as one of the best of the worst,...