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. Her investigation takes her from the streets of Montego Bay to the glitzy neighborhoods of Tel Aviv as she pursues some of the biggest phone, lottery and financial scammers in the world and learns why Americans are the perfect targets.

Fentanyl has turbocharged the deadliest drug crisis in American history. But less understood is how the drug has utterly transformed the black market. 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. Along the way, she learns that many of these counterfeiting operations are run by criminal families in Lima, who are making a fortune despite the anti-counterfeiting efforts of the U.S. Secret Service and the Peruvian National Police.

In the age of social media, the demand for illegal steroids is booming. Mariana searches out producers and users in an attempt to understand the vanity, insecurity and greed that’s driving this dangerously unregulated, billion-dollar black market in body-enhancing drugs.

In an eye-opening journey through her home state of California, Mariana embeds with pimps, victims, undercover cops and private investigators to understand the ugly business of illicit sex in America. How do pimps recruit? How do they think? Where do they get their power? And just how far will they go to grab their share of this billion-dollar black market?

Mariana retraces one of the world’s most intractable smuggling routes, following cocaine’s path from a remote Peruvian valley through Colombia’s Caribbean coast, all the way to the streets of Miami. Despite the decades-long U.S. war on drugs, cocaine production is at an all-time high, and Mariana meets some of the people who risk their lives to deliver America’s favorite party drug.