Underworld, Inc. is a National Geographic television series which explores various illegal underground markets, with episodes dedicated to various black markets including the trade in illegal weapons, illegal gambling, narcotics, and even humans. The series is a spin-off from the hugely popular National Geographic series Drugs. Inc. which focused exclusively on the global narcotics trade.
Season two was aired in the later part of 2015, we have all seven episodes of the series available to watch here on Documentary Vine as well as two special episodes (Tricks of the Trade & Pirates). Navigate between the episodes via the numbered tabs below the video player or by using the episode list below. If you haven’t already done so then first watch season 1.