As with with the other death wish movies the setup is similar. Kersey comes to town to visit an old buddy but low and behold there is a gang who controls the streets and promptly does away with kersey's buddy just before he arrives. Less than two seconds later (literally) he is arrested by a detective 'dude' ( we never get to know his name as far as I remember ) and despatched to jail for his friends murder. Huh? With that type of service the cops would have the streets cleaned up in no time. But I digress. After being jailed and having an impromptu fight with a gang member in the jail cell where he pushes his head through the jail cell bars, he is set loose by detective 'dude' to do his vigilante thing.
Cue kersey's revenge Replete with bazookas through the mail and a Hand cannon dirty Harry would be proud of. In fact they make a joke about that one. The film is a funny mix of dark material and tongue in cheek action. Bronson was reportedly not impressed with the movie at the time and vowed never to work with the director again.
But the question remains is this movie any good? Even as I type this I can't quite decide whether it's nostalgia or plain lunacy but in a twisted way the movie is strangely entertaining. Now I'm not saying its good, it's not its really bad, but it's entertaining as in entertaining to see how badly constructed it is and how much the film maker doesn't seem to care. They seemingly make no effort to mask it. It's like saying 'in for a penny in for a pound'.