Mariana dives into the world of international scamming to understand how it all works and meet the outlaws at the heart of this booming industry.
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 journeys deep inside the Peruvian underworld to meet the gangster craftsmen who make and sell the world’s finest counterfeit U.S. dollars.
Mariana attempts to understand the vanity, insecurity and greed that’s driving the unregulated, billion-dollar black market in body-enhancing drugs.
Mariana embeds with pimps, victims, undercover cops and private investigators to understand the ugly business of illicit sex in America.
Mariana retraces one of the world’s most intractable smuggling routes, following cocaine’s path around the world.
Mariana tackles the black market for tigers and tiger parts, so secretive and dangerous that few have attempted to uncover its ugly details.
Mariana uncovers a supply chain of American firearms being smuggled into the hands of drug cartels, fueling record levels of gun violence in Mexico.
Get a behind the scenes look of Trafficked with Mariana van Zeller.
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 investigates outlaw motorcycle gangs known as 1% clubs, learning about the bonds of brotherhood that fuel these violent groups.
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 races to expose a global underground movement hellbent on a violent white supremacist future.
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.
Mariana travels to the Amazon to track down the criminal networks behind a slew of killings and the illegal destruction of the rainforest.
As much as 30% of our seafood has been caught illegally. Mariana searches for the fish pirates who make billions each year while destroying our oceans.
Mariana investigates the illicit trade in human organs.
Mariana goes in search of the elusive chemists who make the world's LSD.
Mariana exposes the dangers of the growing and deadly ghost guns industry.
Mariana investigates how illicit oil is fueling terrorist groups worldwide.
An alarming message from her son's middle school about MDMA sparks van Zeller into high gear. She traces the supply chain of "the love drug" within the Los Angeles clubs back to its booming epicenter in the Netherlands, where a mob-infested underworld has recently murdered a well-known journalist.
Mariana explores surrogacy's dark side; a babies-for-cash black market.
Mariana investigates the lucrative black market for private data.
Mariana journeys into gangland to understand the violence plaguing LA.
Mariana embeds with crypto scammers who show her how they make millions.
Mariana investigates underground fight clubs and the push to bring bare knuckle fighting into the mainstream.
What drives a person to make a living out of killing? Mariana goes inside the dark world of contract killers.
Mariana heads to Manila to investigate a new blackmail scam, sextortion.
Mariana exposes how black market operators are profiting from the sale of stolen human remains on secret marketplaces in the U.S. and beyond.
The high cost of prescription drugs has pushed millions of Americans to the black market and into hands of criminal syndicates looking to cash in.
Mariana heads to the Congo to investigate the illegal trade in wild apes that have them on the brink of extinction.
Mariana heads to Mexico to investigate the billion-dollar business of people smuggling to the US a system fueled by cartels and corruption.
Mariana tracks the illicit path of hashish from Morocco into Europe a world of shadowy dealers, lightning-fast smuggling boats and endless wealth.
Mariana, an investigative journalist, looks into a fraudulent scheme deceiving senior citizens in the United States. She hopes to uncover how the scam operates and who is behind it.
Mariana investigates a nefarious scam that tricks elderly Americans into becoming unwitting drug mules.
Mariana's investigation into how gold mining is funding terrorism gets interrupted by a military coup that strands the team in Niger.
A cartel murder in a small Georgia town launches Mariana's investigation into the true reach of Mexican organized crime in America. The results are shocking. From hundreds of small-town drug cells to high-level corruption, she exposes how cartels move drugs, launder billions, and even infiltrate law enforcement. It's a growing influence that's fueling violence and addiction across the country.
Mariana heads for a lawless region in Southeast Asia to investigate a diabolical scamming operation. Criminal groups are luring workers from across the world with the promise of good jobs, only to hold them prisoner and force them to scam. It's part of a multibillion-dollar industry known as the “pig butchering” scam and countless Americans have fallen victim.
Mariana investigates a deadly new fentanyl cocktail called "tranq dope" that's devastating American users. She's spent her career covering the deadly waves of the country's opioid crisis, but she's never seen it this bad. Seeking answers, she heads to Sinaloa, the heart of Mexico's cartel land, to get answers, and makes a shocking discovery.
Mariana investigates the black-market trade in trafficked brides destined for China.
Mariana investigates the explosive world of heists.
Mariana investigates the growing influence of heavily armed militias.
Mariana investigates the dark underworld of fraudulent addiction treatment programs.
Mariana investigates the global surge in anti-LGBTQ+ violence.
Mariana investigates the deadly world of illegal street racing.
Mariana investigates the underground market for shark fins.
