Owney "Killer" Madden started out his career in crime with Gangs of New York outfit The Gophers before moving up in the world to open and own the world famous Cotton Club. John 'Red' Hamilton was the number 2 to notorious gangster and Americas most wanted John Dillinger who carried out many bank raids and ran rackets along the Canadian American border during the 1930.

Mickey Spillane was known as "the last of the gentleman gangsters". He ran the rackets in the Hell's Kitchen neighbourhood of New York and was married to the daughter of the most powerful political family in the district. In New York in the 1980s a crew emerged as one of the most feared gang of killers the city had ever seen and they were led by the wildest Westie of them all - Jimmy Coonan.

Danny Greene was known as the Celtic Warrior. He ran a criminal empire in Cleveland and took on the might of the Italian mob there with no fear at all. For over thirty years Jimmy 'The Gent' Burke was one of the most powerful criminals in New York city. He was the basis for Robert De Niro's character in the film Goodfellas.

Pat Nee started out together with James 'Whitey' Bulger in the Winter Hill gang in South Boston but as Whitey started to introduce drugs to the community Nee tried to stop it and eventually they parted ways and became arch enemies. Brian O Dea tells his own incredible story first as a hash dealer with small time deals before becoming the largest Cannabis importer into Canada.

In a deathbed confession Frank 'the Irishman' Sheeran revealed his role in one of the great unsolved mysteries of the twentieth century: Who killed Jimmy Hoffa? James "Whitey" Bulger was America's most wanted until his arrest in June 2011 in Santa Monica and only Osama Bin Laden was more sought than him.