Season 5: The Doctor and the FixIn 1965, a team of doctors at Rockefeller University announced what sounded like a miracle—they’d found a treatment for heroin addiction that actually seemed to work, a drug called methadone. But the treatment was controversial, and one of the doctors on the team already had a bit of a reputation as a bold, and possibly even reckless, defier of convention: Marie Nyswander. This season, we bring you her story and the radical treatment that would upend the landscape of addiction for decades to come.