Hallucinogens (S02E04)

Once hailed as a magic bullet cure-all, psychedelic drugs are center stage of a new medical frontier. Deep in the Amazon, Rob - a former Wall Street broker turned healer - has created a free clinic of sorts, administering the highly potent narcotic ayahuasca to trauma patients. But he spirals dangerously out of control on his own trip. Dimitri, a former heroin addict, helps drug users overcome addiction using a controversial hallucinogen called ibogaine, and encounters dangerous side effects. (National Geographic)