Rambo (2008)

Twenty years after the last film in the series, John Rambo has retreated to northern Thailand, where he's running a longboat on the Salween River. On the nearby Thai-Burma border, the world's longest-running civil war, the Burmese-Karen conflict, rages into its 60th year. But Rambo, who lives a solitary, simple life in the mountains and jungles fishing and catching poisonous snakes to sell, has long given up fighting, even as medics, mercenaries, rebels and peace workers pass by on their way to the war-torn region. That all changes when missionaries are captured by the Burmese Army. Pastor Arthur Marsh turns to Rambo for help. Although the United States military trained him to be a lethal super soldier in Vietnam, decades later Rambo's reluctance for violence and conflict are palpable, his scars faded, yet visible. However, the lone warrior knows what he must do.