Mariana van Zeller and film crew stand around trains in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_09.jpg
Mariana van Zeller and film crew stand around trains in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_08.jpg
The crew and Mariana van Zeller stand around trains in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_20.jpg
The crew films Mariana van Zeller in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_22.jpg
The crew films Mariana van Zeller and H3 in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_24.jpg
The crew films Mariana van Zeller and H3 in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_25.jpg
Mariana van Zeller stands between two trains in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_19.jpg
08 and the cartel members get to work producing fentanyl in a hidden lab in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_UHD_09.jpg
Mariana van Zeller speaks with Chili and Cheese in Miami. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_UHD_08.jpg
Mariana van Zeller watches as 08 and the cartel members get to work producing fentanyl in a hidden lab in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_UHD_05.jpg
Mariana van Zeller watches as 08 and the cartel members get to work producing fentanyl in a hidden lab in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_UHD_04.jpg
Mariana van Zeller interviews H3 in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_UHD_10.jpg
Cartel members get to work producing fentanyl in a hidden lab in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_UHD_06.jpg
Mariana van Zeller speaks with Chili and Cheese in Miami. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_UHD_07.jpg
Mariana van Zeller speaks with El Cuervo in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_UHD_03.jpg
Mariana van Zeller interviews Gabriel in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_UHD_02.jpg
Mariana van Zeller and Miguel stand at a memorial in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_UHD_01.jpg
The crew films Mariana van Zeller and H3 in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_15.jpg
The crew gets ready to film in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_03.jpg
Mariana van Zeller interviews H3 in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_12.jpg
The crew films Mariana van Zeller between trains in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_06.jpg
Mariana van Zeller and film crew stand around trains in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_07.jpg
Mariana van Zeller interviews H3 in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_11.jpg
Mariana van Zeller and film crew stand around trains in Culiacán, Mexico. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_10.jpg
The crew talks near a fence with Mariana van Zeller. (National Geographic)Episode: #3 "The Tranq Dope Underground"Air Date 08/02/2025503_TheTranqDopeUnderground_Trafficked_04.jpg