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.
FBI agent Barney Coopersmith is assigned to protect former Mafia figure turned informant Vincent Antonelli. In the witness protection program one is supposed to keep a low profile, but that is something that Antonelli has trouble doing. Coopersmith certainly has his hands full keeping Antonelli away from the Mafia hitmen who want to stop him testifying, not to mention the nightclubs...