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Mariana discovers the smuggling of U.S. guns to drug cartels in Mexico; this supply chain contributes to high gun violence rates; she investigates the flow of firearms.

Trafficked With Mariana van Zeller

Guns

Mariana tackles the secretive and dangerous black market for tigers and tiger parts.

Tiger King Underworld

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.

Cocaine

Mariana van Zeller investigates a new wave of underground steroids promising to make users superhuman.

Steroids

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

Counterfeiting

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

Fentanyl

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

Scams

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Mariana van Zeller explores the complex inner-workings of the global underworld, black and informal markets.

S1 E4 | Steroids

E8 | Guns

E7 | Tiger King Underworld

E6 | Cocaine

E4 | Steroids

E3 | Counterfeiting

E2 | Fentanyl

E1 | Scams