Getting a handle on organized crime has long been an arduous, frustrating task for law enforcement. The purveyors seemed to stay a step ahead of the pursuers, turning brutal killers into infamous, respected businessman in some segments of society. On this series, the secrets of some of the mafia's most notorious outlaws are told by people who brought them to justice. The rise and fall of gangsters such as Charlie "Lucky" Luciano, John Gotti, Carmine Galante and Vito Genovese are revealed, including how the FBI developed techniques to finally crack the mob. An episode also features former FBI agent Joe Pistone, who infiltrated the mafia for six years as Donnie Brasco, leading to more than 100 convictions.