How heroin and its availability in the ‘80s changed life for the criminal underworld and for communities where it was rife. The director interviews all sides of the trade – a smuggler, detectives and customs officers, a journalist, drugs counsellors and an addict.

In the ‘90s Liverpool’s Narcos set up direct contact with Colombian cartels to flood the UK with cocaine, becoming multi-millionaires in the process. The focus is Curtis Warren and on Stephen Mee, described by the police as kingpin Warren’s second in command.

Moving in to the late ‘80s, the drugs revolution sparked by the arrival of ecstasy and how dealers, club bouncers and their bosses fought it out to gain control of a very lucrative market