The illegal, multibillion-dollar global sex trade includes brothels, massage parlors and online escort agencies and is one of the oldest professions. Take a look inside this illegal trade where pimps treat women as commodities - bought and sold, used and abused, then discarded. Written by National Geographic

Thousands of Central Americans head to the US border, lured by a vision of the Promised Land. At crossing points, networks of 'coyotes' wait to get them across. But once in the traffickers' clutches, the migrants are held to ransom payment. Men who can't pay are sold to work off the debt as laborers; women as prostitutes. The story is told from the inside, in the words of the migrants and from the mouths of the cartel foot soldiers.

Millions of Americans love to gamble. But some forms of gambling are restricted or illegal, pushing it underground, where the rules are very different. Here if you want to play you have to pay. The bookie will extend credit, but miss a week, you miss a finger. Or worse. In the shadows of the law, people will bet on anything; legal or illegal. Innocent lives are put at risk in a world where only one thing matters--money.

A docu-series that provides an inside look into various illegal activities and black markets around the world, where drugs, firearms and even people are reduced to mere commodities.