
Episode 1
Scams
Mariana dives into the world of international scamming to understand how it all works.

ORYVE presentation
A 360-degree view of the trafficking world from the point-of-view of the traffickers, law enforcement agents and those caught in the crossfire with access only National Geographic can provide.

Episode 2
Mariana investigates fentanyl, a contributor to the deadliest drug crisis in U.S. history.

Episode 3
Mariana meets the craftsmen who make and sell the world's finest counterfeit U.S. dollars.

Episode 4
Mariana attempts to understand the vanity, insecurity and greed that drives steroid use.

Episode 5
Mariana sets out to understand the ugly business of illicit sex in America.

Episode 6
Mariana retraces one of the world's most intractable smuggling routes, following cocaine's path around the world - from the Peruvian jungles, to the Colombian coastline, and to the streets of Miami.

Episode 7
Mariana van Zeller tackles the black market for tigers and tiger parts, so secretive and dangerous that few have attempted to uncover its ugly details.

Episode 8
Mariana uncovers a supply chain of firearms being smuggled into the hands of drug cartels.