Heroin users in America began showing symptoms associated with Krokodil, a home-cooked opiate, including raw lesions, decaying skin and grotesque sores.

With more than 4 million regular users in the United States alone, cocaine has become worth more than gold. Join Nat Geo Channel as we go inside one of the largest markets in the country, Los Angeles, Calif.

The most powerful drug trafficking organization in the world, the Sinaloa Cartel, has found a new way to exploit American drug demand with Mexican super meth, a stronger and more addictive form of crystal meth.

The rapidly growing appetite for California Sour Diesel, a potent strain of marijuana said to induce an instant high, is helping fuel a violent drug underworld that stretches from coast to coast.

Ecstasy rebranded as pure MDMA is exploding in popularity while new-wave dealers try to distribute a molly alternative.

A look at the gangs that supply party goers with illegal drugs during New Year's Eve celebrations in New York City.

In Columbus, Ohio, the purity of heroin is on the rise. It’s more deadly than ever before and local paramedics are fighting to save the lives of struggling addicts.

As tourists flood New Orleans, so do drug dealers eager to make a profit; in a fierce competition one dealer becomes a target when he sells fake drugs.

Its spring break in Florida and the wave of students means the demand for drugs is flooding the streets. In a month-long party, springbreakers’ drug of choice is “molly.” For local dealers, spring break is the busiest time of year.

Chicago, Illinois, is the drug hub of the Midwest and one of the most dangerous large cities in the United States. The Fourth of July is one of the bloodiest nights of the year and a time when the demand for drugs booms.