The Irish Mob

Based in Canada, the Stopwatch Gang got their name from the FBI as its leader always wore a stopwatch and all bank robberies lasted no more than 90 seconds. The West End Gang went on to become one of America's largest cocaine importers.

Pat Nee started out together with James "Whitey" Bulger in the Winter Hill gang in South Boston. Brian O'Dea gives an incredible first-hand account of what it is like to be a major drug importer and how it can ruin so many lives.

In a deathbed confession, Frank "The Irishman" Sheeran revealed his role in one of the great unsolved mysteries of the 20th century - who killed Jimmy Hoffa?