What balls Quinn had playing this role with such violent aplomb. He curses everybody, slams them with his swollen fists and kicks them when they're down, just for the hell of it. Its hell up in Harlem and the dego clan's ready to kick some serious black ass. Meanwhile, the NYPD dicks have to clean house but end up two steps behind and kicking booty a buck too late. The action scenes are bone breaking, brutal, and explosive.
Nobody's immune to getting their ass kicked.
And, like other films of this type in the '70's, there's no hero lines drawn - everybody reeks in this world. There's nobody to root for here, making it anti-heroic all the way to the cool, unpredictable ending. There's no doubt - they can't stand each other.