In Vengeful Angels readers learn that Mario Paterlini, the patriarch of the Paterlini family has been killed. Mario's sons meet to plan their revenge. Meanwhile, the New York Mafia bosses convene to arrange hits on the Paterlini brothers who now hold a desirable narcotics territory in New York that belonged to their father. The brothers attempt to exact vengeance on the person they believe to be responsible. However, their intended plan goes awry and they descover they have become targets. Now, the brothers must track down and kill their enemies before the hired guns kill them.