Paul Williams is Ireland's No. 1 award-winning crime reporter, famed for exposing the ruthless gangsters behind Irish crime.

In Gangland! he investigates who is pulling the strings behind the scenes - the families that form the Irish mafia - and examines the way in which their net has spread across Ireland and beyond.

Compelling, chilling and unput-downable, Gangland gives the inside story on a dark and sinister world.