Revealing what happened when the FBI pursued the five clans who ran organized crime in New York, as well as the fate of two brave informers.

Arnold Rothstein schooled the founders of the American Mafia in the ways of organized crime during the 1920s and set the model for running crime business. Infamous for fixing the 1919 World Series, he was the criminal genius behind a bootleg empire

Albert Anastasia would oversee the American Mafia's most violent period in history. As Luciano's go-to killer, Albert and his hitmen committed murder wholesale. He was unpredictable, a psychopath who would outlive his usefulness.