Revealing the secrets of the Mafia's most notorious members, beginning with Sam Giancana, who was associated with the Kennedys, Frank Sinatra and the CIA.

Even while being behind the bars for a great part of his career, Carmine Galante was still able to have a lot of power in organized crime.

Former FBI agent Joe Pistone, who infiltrated the Mafia for six years as Donnie Brasco, reveals how his undercover work led to more than 100 convictions - and resulted in the death of underworld figure Dominick `Sonny Black' Napolitano.

A close associate of longtime Teamsters President Jimmy Hoffa and associated with the Chicago Outfit, Alan Dorfman embezzled millions for the mob and himself until he was violently murdered in 1983.

How Joseph Valachi knew there was a 'hit order' out on him, and lived in so much fear that he revealed Both the existence of, and the whole structure of the Mafia for the first time.

New York City mafia hit man, Roy Demeo, escaped the authorities for a long time and killed around 200 people.

The story of Meyer Lansky, an associate of Lucky Luciano who was linked to criminal financial operations, but the FBI struggled to pin anything on him - or find his riches.

Good friends and business partners Robert Kubecka and Donald Barstow were able to bring down nine of the biggest gangsters of New York City.

Charles "Lucky" Luciano was the number one gangster of all time. He put the "Organised" into organised crime and invented the modern Mafia.

The story of, Joe Colombo, the youngest Godfather of the Mafia that had problems caused by his flamboyant way of living.

The story of ambitious American mobster John Gotti, who became the boss of the Gambino family by ordering the death of the group's former head. He earned the nickname `Teflon Don' after three acquittals.

The story of Tony Spilotro, who protected the Chicago Mafia's interests in the casinos of Las Vegas and became a target for the FBI.

Raised in the slums with terrifying gangs. He grew to inherit a Mafia entity; only to be faced with murder, the electric chair and fierce rivalry.