Australians are among the world's biggest consumers of ecstasy, but where does MDMA actually come from? This investigation follows the drug from clandestine laboratories and chemical suppliers to international trafficking networks and the people who consume it. Travelling from Australia to the Netherlands, reporters examine MDMA production, precursor chemicals, the dark web, and the criminal networks supplying the global market. The investigation also explores Dutch drug policy and harm reduction, revealing a very different approach to drug education while examining the risks surrounding one of the world's most popular party drugs.