Thailand's border explodes with violent conflict. Ruthless Khmer Rouge guerrillas are herding hundreds of refugees to be marched to Kampuchea and used as slaves... or worse. Now, however, the guerrillas have gone too far. A State Department agent has been snatched, spirited away into a jungle network of fear and brutality, where death seems a welcome escape. Mack Bolan returns to a hellzone he knows well, launching a desperate mission to crush a secret army and rescue a kidnapped spy. As a young soldier in Asian lands, the Executioner got his name. He was also known as Sergeant Mercy. There will be no mercy now.