Always a tough town, Glasgow has long held the reputation of being Britain's most deadly city. In the first episode hear about brutal gangland hits and a lethal turf war conducted by ice-cream van drivers. Then meet Glasgow's first godfather who flourished from local hardman to become the mastermind behind an epidemic of armed robberies, as we expose how Scotland's second city turned to crime.

Episode two goes to the world famous home of the Beatles, Liverpool - but we investigate the darker side. Using the port as the foundation for a criminal empire based on drug dealing, Scouse villains started to import cannabis, heroin and cocaine on an unprecedented scale. Exploring run-of-the-mill provincial crooks to some of the wealthiest gangsters in British history (including one with an entry in The Sunday Times Rich list); we chart the rise of the drug pioneers. Plus, find out how a supergrass helped bring down two of the country's biggest and richest criminals.