Two young American women face prison sentences for trying to bring back cocaine in exchange for a luxury vacation in Peru.

Down on his luck magician Mark Greening resorts to bringing illegal drugs into Japan. However, what looks like easy money turns into five years of forced labor.

A man, Michael Morey, agrees to smuggle cocaine from Ecuador to Spain to make money to support his family.

Dream adventures turn into hellish nightmares for the travelers featured in this series, which recounts through firsthand interviews and re-enactments terror-filled experiences of being arrested in a foreign country, usually for drug smuggling, and how they coped with the resulting lengthy prison terms. Viewers also hear from people directly involved with the arrests, whether it's the undercover agents gathering the evidence against the suspects, or the people making the drug dealing offers.

Dream adventures turn into hellish nightmares for the travelers featured in this series, which recounts through firsthand interviews and re-enactments terror-filled experiences of being arrested in a foreign country, usually for drug smuggling, and how they coped with the resulting lengthy prison terms. Viewers also hear from people directly involved with the arrests, whether it's the undercover agents gathering the evidence against the suspects, or the people making the drug dealing offers.

Mark O'Brien is busted with hash in India; David Kunkel is caught smuggling hash in Greece.

Champion skier Nick Brewer flees home and begins selling pills in France.

Party girl Christina spirals into addiction but sees a way out through drug smuggling; it's a decision that costs her five years of her life.

When struggling blues musician David Evans has trouble making ends meet, he attempts to make some money by smuggling cocaine out of Venezuela to Europe.

Dream adventures turn into hellish nightmares for the travelers featured in this series, which recounts through firsthand interviews and re-enactments terror-filled experiences of being arrested in a foreign country, usually for drug smuggling, and how they coped with the resulting lengthy prison terms. Viewers also hear from people directly involved with the arrests, whether it's the undercover agents gathering the evidence against the suspects, or the people making the drug dealing offers.

A teenage drug courier is tricked into a more dangerous job than she bargained for in Bolivia; a teen agrees to smuggle drugs from Colombia.

Latasha Madson gets a chance to dance in a club in Thailand, where she falls in love with a man named Phillip; caught with a stash of Phillip's heroin, she is sent to Thailand's notorious "Bangkok Hilton" prison.

Dream adventures turn into hellish nightmares for the travelers featured in this series, which recounts through firsthand interviews and re-enactments terror-filled experiences of being arrested in a foreign country, usually for drug smuggling, and how they coped with the resulting lengthy prison terms. Viewers also hear from people directly involved with the arrests, whether it's the undercover agents gathering the evidence against the suspects, or the people making the drug dealing offers.

Dream adventures turn into hellish nightmares for the travelers featured in this series, which recounts through firsthand interviews and re-enactments terror-filled experiences of being arrested in a foreign country, usually for drug smuggling, and how they coped with the resulting lengthy prison terms. Viewers also hear from people directly involved with the arrests, whether it's the undercover agents gathering the evidence against the suspects, or the people making the drug dealing offers.

Dream adventures turn into hellish nightmares for the travelers featured in this series, which recounts through firsthand interviews and re-enactments terror-filled experiences of being arrested in a foreign country, usually for drug smuggling, and how they coped with the resulting lengthy prison terms. Viewers also hear from people directly involved with the arrests, whether it's the undercover agents gathering the evidence against the suspects, or the people making the drug dealing offers.

A look at the risks traffickers face if they are caught.

A skier smuggles coke in wine bottles; a chef bootlegs wine in Saudi Arabia.

Desperate to keep his family afloat, Paul agrees to smuggle six kilos of cocaine from Venezuela back to Dublin. It turns out to be the worst decision of his life.

A military veteran facing a manslaughter trial, travels to Thailand for a quick holiday. Whilst there, she learns that her travel companion is planning to smuggle heroin back into the US and agrees to help.

Dumped by her lover,a Chicago woman smuggles heroin from Thailand to fund a new life. When caught and sentenced to life at a notorious Bangkok prison, she attempts suicide but fails.

A teenager caught attempting to smuggle 33 pounds of marijuana out of Mexico spends years struggling to survive in prison.

How does the drug trade work? Can it be stopped or should it be regulated? And what are the personal costs? Those are just some of the questions asked in this series, a comprehensive look at society's most abused drugs: cocaine, methamphetamine, heroin and marijuana. First-person perspectives from traffickers, dealers, users, law enforcement and medical professionals detail how the drugs are processed and moved onto the streets, and the effects they have on the human body. It's a raw, eye-opening documentary about a billion-dollar industry.

This documentary series focuses on extreme construction projects -- be they the biggest, tallest, longest or deepest in the world -- and the machines used to create extraordinary structures. Episodes include the people responsible for the cutting-edge design and engineering of each build, talking about how concept transformed to reality. The processes that go into staffing and operating the modern marvels once they are completed are also covered.

"Lockdown" plunges viewers headfirst into life in the "big house," the gritty underworld of America's maximum-security prisons, where gangs are prevalent, predators stalk their next prey and inmates are armed with deadly weapons. But prison officials have their own weapons in the form of modern surveillance and old-time isolation -- plus steel batons and pepper spray -- to help keep the peace in these miniature war zones.

Each year the U.S. economy is flush with more than $500 billion generated in illegal transactions. From sex, weapons and drugs to gambling and counterfeit merchandise, nothing is off limits and seemingly everything is for sale. In "Underworld, Inc.," National Geographic Channel is granted unprecedented access to this "free" enterprise. Workers, suppliers, sellers, customers -- and law enforcement personnel trying to keep it in check -- share their experiences of an underground industry that is brutal, exploitive and corrupt.

Despite cameras and guards monitoring their every move, some prisoners are daring enough to test the system and execute a breakout. Told from the perspectives of both the escapees and the law enforcement teams tracking them, this series documents some of recent history's high-profile jailbreaks and the various methods officials use to outsmart the criminals, leading to their eventual recapture.

Advanced computer graphics, forensic science, eyewitness accounts, interviews with experts, archival footage and re-enactments piece together in great detail the events that led to some of the biggest disasters of modern time.