Join Mariana Van Zeller as she uncovers the horrors of the animal trafficking industry. Watch new episodes of #TraffickedWithMarianavanZeller, Wednesdays at 9/8c on National Geographic. Stream on Hulu. | National Geographic TV

In one of her most intense investigations, Mariana Van Zeller works to connect the dots of a drug trafficking scam that's seen unsuspecting men arrested for crimes they say they never committed. Watch all-new #TraffickedWithMarianavanZeller, Wednesdays at 9/8c on National Geographic. Stream on Hulu. | National Geographic TV

In every city, there are people who play by the rules, and people who don’t. Investigative journalist Mariana van Zeller is on a mission to access criminal networks, and she’s taking you with her. From the tiger trade to cocaine creation, join her in a brand new series: Trafficked with Mariana van Zeller. Starts 18th of January on National Geographic UK. | National Geographic UK

Mariana uncovers a lethal supply chain of American firearms being smuggled into the hands of drug cartels and fueling record levels of gun violence in Mexico. Don't miss the two-hour finale of Trafficked with Mariana van Zeller tonight at 9/8c on National Geographic. | National Geographic