Underworld, Inc. - Season 1 - Eps 1: Ghost Guns
To get away with a crime, criminals look for completely untraceable guns. Enter the “ghost” gun: an exact replica with a fake serial number and no ballistic record — a gun that is potentially invisible to law enforcement.
About Underworld, Inc.

Title: Underworld, Inc.
First Air Date: 2015-01-07
Last Air Date: 2016-07-10
Status: Returning Series
Rating: 7.2/10 (from 5 votes)
Language: EN
Seasons: 3
Total Episodes: 16
Network: bilibili
Genres: Documentary, Crime
Production Companies: National Geographic, Wall to Wall
Synopsis
The black market can be brutal, exploitative, corrupt. Nothing is off-limits; everything is for sale. And what you buy may not be what it seems. But it's an industry estimated to be worth hundreds of billions of dollars in the U.S. alone. Join the suppliers, sellers, customers, and the law enforcement officials trying to keep it in check as they share their experience of a hidden world that touches us all.