In 1960s California, a cult leader mesmerized America by claiming to have discovered the cure for heroin addiction. His rehab ran on punishment and profits, putting participants to work and generating millions from their free labor. A new system of rehab was born. Over the decades the model would be hailed by an American president and endorsed by judges across the country. Today these rehabs are flourishing by turning people desperate for treatment into an unpaid labor force. As the opioid epidemic rages on, Reveal uncovers tens of thousands of people each year trapped in the gears of this rehab machine.