Air date: 2023-01-18

Runtime: 45 min

A look at the complex inner-workings of the global underworld, black and informal markets.

Air date: 2023-01-25

Runtime: 45 min

Mariana goes in search of the elusive chemists who make the world's LSD.

Air date: 2023-02-01

Runtime: 45 min

Mariana exposes the dangers of the growing and deadly ghost guns industry.

Air date: 2023-02-08

Runtime: 45 min

Mariana investigates how illicit oil is fueling terrorist groups worldwide.

Air date: 2023-02-15

Runtime: 45 min

An alarming message from her son's middle school about MDMA sparks van Zeller into high gear. She traces the supply chain of "the love drug" within the Los Angeles clubs back to its booming epicenter in the Netherlands, where a mob-infested underworld has recently murdered a well-known journalist.

Air date: 2023-02-22

Runtime: 51 min

Mariana explores surrogacy's dark side; a babies-for-cash black market.

Air date: 2023-03-01

Runtime: 42 min

Mariana investigates the lucrative black market for private data.

Air date: 2023-03-08

Runtime: 43 min

Mariana journeys into gangland to understand the violence plaguing LA.

Air date: 2023-03-15

Runtime: 43 min

Mariana embeds with crypto scammers who show her how they make millions.

Air date: 2023-03-22

Runtime: 43 min

Mariana investigates the growing popularity of bare-knuckle fighting.