National Geographic Takes Viewers Inside the Global Underworld in New Docuseries, Trafficked with Mariana van Zeller, Premiering January 1, 2021 Ahead of Winter Premiere, Network Greenlights Second Season Armed with National Geographic's trademark inside access, Trafficked with Mariana van Zeller takes viewers on a journey inside the most dangerous black markets on the … [Read more...] about Trafficked with Mariana van Zeller Renewed For Season 2 By Nat Geo!