A pair of passionate and devout Irish brothers offended the gang for killing someone in self-defense, but the police station acquitted them in the name of self-defense. From then on, the two decided to fight the dregs of society with their own strength, buy weapons to fight violence with violence, and eliminate criminals with the help of their friend Rocco (David Della Rocco). Federal detective Paul Smack (Willem Dafoe) was in charge of solving the case and had no clue; but after the gang leader "Dad Joe" (Carlo Rota) hired the legendary gunman "Duke" (Billy Connolly) to fight the McManus brothers, the situation changed unexpectedly...