Mariana van Zeller explores the complex inner-workings of the global underworld, black and informal markets.
Join Mariana van Zeller as she investigates one of the darkest and most elusive black markets in the world - the illicit trade of human organs. 16+.
While LSD is making a comeback thanks to growing interest in underground therapy, there's only a handful of chemists making it. Can Mariana track one of them down? 16+. (S3, ep 2)
Built from kits than anyone can buy online, untraceable 'ghost guns' are quickly falling into some very dangerous hands. Mariana investigates. 16+. (S3, ep 3)
Mariana embarks on a 3,000-mile journey from Africa to the Middle East to uncover how black market oil is fuelling terrorist groups around the globe. 16+.
Mariana investigates how the demand for MDMA in the US is threatening to turn the Netherlands into a narco state. 16+.
Mariana investigates how the dream of starting a family is fuelling a billion-dollar babies-for-cash black market. 16+.
Join Mariana on a mission to expose a shadowy network of hackers and thieves and discover one of the fastest-growing black markets: cyber-crime. 16+. (S3, ep 4)
Violent crime is soaring in Los Angeles. To understand this gruesome trend, Mariana works her way inside two of America's most notorious street gangs - the Bloods and the Crips. 16+.
Despite now being mainstream, Cryptocurrencies still lack regulation. Mariana embeds with a crew of scammers who use this to swindle millions of dollars in mere weeks. 16+.
From the bare-knuckle mecca of Thailand to underground fights in America, Mariana investigates the growing popularity of bare-knuckle fighting. 16+. (S3, ep 9)