Vigilante Eddie Marino (Robert Forster) is a factory worker in New York City. Vickie ( Rutanya) is his wife and Scott ( Dante Joseph). Eddie’s friend and co-worker, Nick ( Fred Williamson) along with two other co-workers, Burke and Ramon, have created an anonymous vigilante group as Nick and the group are fed up with the way their communities are governed by crime. Because the police don’t defend anyone, Nick and his group also get tired of the police. Nick’s “group” is supported by different residents of the area who indirectly help them. For instance, local thugs chase down an unidentified young woman and drags her to the roof of an apartment. The thug then steals and kills the woman. An elderly woman who is witness to the thug’s actions does not report it to the police, but does point to Nick and his group the next day. Nick and his buddies forcefully remove the thug from the streets and put him inside their van, and drive away. The thug is later discovered dead in a parking lot with his legs and arms broken and his head smashed into. Vigilante HD
One evening, Eddie returns home from work only to find out that Vickie was stabbed and Scott was shot dead in an home invasion that was a revenge for Vickie aiding an attendant at a gas station who was attacked earlier. Frederico “Rico” Melendez ( Willie Colon) who is the leader of a street gang from Puerto Rico, is taken into custody. Assistant District Attorney Mary Fletcher ( Carol Lynley) seeks a lengthy jail term, considering that New York does not have the death penalty. Nick tries convincing Eddie to join the vigilante society however, Eddie does not take Nick’s suggestion and prefers to let the courts deal with Rico. Rico gets released from prison after Prago (Don Blakely), his right-hand man who bribes Judge Sinclair (Vincent Beck) and Eisenburg ( Joe Spinell) who is Rico’s lawyer. Enraged, Eddie attacks the judge and is sentenced to jail for 30 days.
With Eddie in jail, the vigilante group tracks for the source of drugs that are circulating in their area. After robbing an uninvolved drug dealer ( Frank Pesce) and torturing his source, they are led to an official in the New York mayor’s office. Meanwhile, in prison, Eddie befriends an inmate named Rake ( Woody Strode) who helps him from being gang raped in the showers. Eddie is released from prison and is part of the vigilante group to hunt the suspects Prago, Rico and Judge Sinclair. Eddie, Nick, Burke and Ramon confront Rico in his shady apartment and Rico refuses to admit that Eddie killed his son and insists it was Prago. Incredibly unmoved, Eddie shoots Rico dead. Rico’s girlfriend is attempting to kill him but Rico is able to escape with his life. Burke is wounded instead and Nick kills herself in self-defense. After hearing about the death of Rico, Prago takes over command of the gang. He mistakenly assumes that dirty cops were responsible for killing Rico. Prago along with his gang rob a police car, killing both police officers.
Vickie has been released from the hospital, but she refuses to go back to Eddie. She leaves Eddie and is unable to be at the house where their son was murdered. Eddie decides to leave as well, dissatisfied with the fact that he killed man, and in fear that the gang might track him to the location. Nick fails to persuade Eddie to remain and fight. When Eddie goes to leave Brooklyn, he recognizes Prago and follows him on the ground. Prago quickly spots Eddie and they begin shooting at each other. Prago steals a car and Eddie is able to steal a vehicle to pursue his. The chase ends at the local dockyard in which both vehicles crash. Eddie chases Prago on foot again before confronting him on a storage tower. Sadistic and insane until the end, Prago admits to killing Scott before daring Eddie to murder him. Eddie reacts by throwing Prago off the tower to his death without hesitating. Then, Eddie places a bomb inside Judge Sinclair’s vehicle and then observes as it explodes taking the life of Sinclair. Eddie quits the film and drives off to an unknown location.