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Mariana van Zeller investigates outlaw motorcycle gangs known as 1percent clubs, learning about the bonds of brotherhood that fuel these violent groups.
Mariana journeys deep inside the Peruvian underworld to meet the gangster craftsmen who make and sell the world's finest counterfeit U.S. dollars.
Award-winning journalist Mariana van Zeller explores the inner-workings of the global underworld's most dangerous black markets.
Meet the outlaws at the heart of the booming industry of international scams and learn how they continue to adapt and prosper.
Mariana retraces one of the world's most intractable smuggling routes, following cocaine's path around the world.
Mariana attempts to understand the vanity, insecurity and greed that's driving the unregulated, billion-dollar black market in body-enhancing drugs.
Mariana goes in search of the new bosses, new routes, new risks and the American communities paying the price for fentanyl's next wave.
Mariana tackles the black market for tigers and tiger parts, so secretive and dangerous that few have attempted to uncover its ugly details.
Mariana embeds with pimps, victims, undercover cops and private investigators to understand the ugly business of illicit sex in America.
Mariana van Zeller investigates underground plastic surgery, from motel-room operations to a deadly revelation about Miami's discount surgery centers.
Mariana journeys from America's heartland to the cafes of Ghana to meet the romance scammers fleecing Americans out of millions.
Mariana sets off on a wild journey through California's black market for weed, which has mushroomed since marijuana legalization four years ago.
Mariana van Zeller follows a meth superhighway from a cartel-run lab in Sinaloa across the border and into the lives of American users.
Mariana follows a smuggling route of cars stolen from the U.S. to shipping containers bound for West Africa, where the demand is skyrocketing.
Mariana investigates a new breed of narco starting to gain power in cocaine trafficking networks of Colombia and Brazil: las jefas, lady bosses.