We visit Liverpool, long regarded as a criminal hot-spot for illegal drug importers. We find out how the narcotics trade put the city on the map and meet one man who made, and lost, his fortune there.

Manchester; in this episode we explore a gang rivalry which has drawn comparisons to the deadly gang wars from Los Angeles, The Gooch versus The Doddington.

In this episode the spotlight moves to Birmingham, to explore how modern day gangsters have emerged from the shadows of previous generations.

In this episode, we discover how Britains' Underworld has no respect for boundaries. We meet a Newcastle crook who imported drugs from Pakistan, and one of Newcastle's most feared Underworld figures.