Watch Drugs, Inc. Season 2 in Australia

Inside the world of producers, traffickers, dealers, users, doctors, and cops who make up the multi-billion-dollar industry.

A former British gangster serves as guide into this illicit underworld, visiting a secret hash-making location nestled in the mountains.

Known by users as the ultimate “love drug,” ecstasy’s euphoric high comes with major lows: Ravers have died from it and organized crime gangs will kill for it.

Deep in the Amazon, Rob—a former Wall Street broker turned healer—has created a free clinic of sorts, administering the highly potent narcotic ayahuasca to trauma patients.

Ketamine—chemically, a compound called ketamine hydrochloride—is a drug that was developed in the 1960s to sedate animals and humans for surgery, though it eventually was replaced by medications that worked faster with less risk. Beginning in the 1990s, initially to the puzzlement of police, burglars began breaking into veterinary clinics and stealing ketamine. They soon learned that recreational drug users had discovered ketamine and were turning it into the new hallucinogenic party drug. In its standard powdered form, ketamine looked like cocaine, and could be snorted in the same way. But it also could be easily modified for injecting, smoking or even mixing into drinks.

Known as Hillbilly Heroin, Opiate pain pills can be found in every town and city across the United States. From the poorest trailer home to the most expensive mansion, they are tearing apart the fabric of American society.

For a few dollars, users can access dozens of compounds that mimic cocaine, ecstasy or marijuana. Sold as “Bath Salts” or “Spice,” these drugs are entirely legal.

Auto crime is the tip of a sinister global iceberg where a car stolen in LA could end up on the Russian black market or a truck taken in Laredo, Texas could become a heavily armored 'narco tank' used in Mexican Cartel gun battles.