Every city in the world has drugs, and the global narcotics trade is worth US$350 billion annually.

But location, demographic, industry, culture and tradition all combine to make each city’s drug scene unique.

Drugs Inc. travels from Alaska to New Orleans, Hawaii to Las Vegas, to talk to those at the sharp end of the war on drugs.

Cops, customs, traffickers, dealers, users and medics share their intimate knowledge and experience to reveal the dark heart of the world's most notorious drug cities.