The drug lords have the power, the money, the connections. They didn't count on McBain

Santos attempts to lead a people's revolt in Colombia to overthrow the Presidente. When his revolt fails and he is killed, his sister Christina goes to New York to find McBain, a lieutenant Santos rescued during the Vietnam War. McBain agrees to help, recruits his old war buddies, raises some cash by killing a few drug dealers, then leads an attack to topple the Colombian government.