Trafficked with Mariana Van Zeller

Mariana van Zeller investigates one of the darkest and most elusive black markets in the world-- the illicit trade in human organs.

LSD is booming because of the growing faith in its healing power. Mariana hunts for the elusive chemists responsible for making the world's supply.

Mariana is on a mission to expose how ghost guns — untraceable firearms built from kits bought online — are fueling violence across the country.

Mariana embarks on a journey from Africa to the Middle East to uncover how black-market oil is fueling terrorist groups around the world.

Mariana investigates how the demand for MDMA here in the U.S. is threatening to turn the Netherlands into a narco state.

Ukraine was the epicenter of the billion-dollar global surrogacy business, until its war with Russia upended the controversial industry. Now, with the demand for surrogacy still surging, other countries are stepping in to fill the void. But that's not necessarily a good thing. In this episode, Mariana investigates how the dream of starting a family is fueling a babies-for-cash black market.

Cyber-crimes like credit card scams, identity theft and ransomware are the fastest-growing black markets in the United States, making data a more valuable commodity than gold, guns and drugs. Mariana is on a mission to understand how our personal and financial information is stolen, sold, and distributed by a shadowy network of hackers and thieves, exposing a network of global proportions.

Violent crime is soaring in Los Angeles to levels not seen in 30 years. To try and understand the realities and the rivalries fueling this gruesome trend, Mariana finds her way inside two of America's most notorious street gangs - the Bloods and the Crips. Surprisingly, her journey will lead her from some of the roughest neighborhoods of LA to the tiny Central American country of Belize.

Cryptocurrencies have gone mainstream and minted billionaires around the globe, but this get-rich-quick fever paired with a lack of government oversight and regulation has created the perfect opportunity for scammers. In this episode, Mariana embeds with a crew of crypto "rug pull" scammers, who show her how they make millions of dollars in mere weeks.

Mariana investigates the growing popularity of bare-knuckle fighting. On a journey that will take her from the bare-knuckle mecca of Thailand to underground fights throughout the U.S., Mariana explores the allure of these violent, bloody bouts and how they're feeding a larger push to bring bare-knuckle fighting to the mainstream.