Mack Bolan is a Vietnam War veteran serving as a sniper. It is in these jungles where the young Bolan honed his military capabilities and his deadly accuracy. His 97 confirmed kills gave birth to the nickname he would carry for the rest of his life: The Executioner. Amidst the chaos of war, Bolan also earned the moniker "Sergeant Mercy", for his compassion and willingness to help innocent Vietnamese citizens put in harm's way or wounded by the conflict around them.