A new docuseries challenges half a century's worth of received wisdom about the influential social psychology study

Participants from a notorious psychological experiment that shocked America have reunited more than 50 years later for The Stanford Prison Experiment: Unlocking The Truth, a new three-part docuseries on National Geographic.

For a few days in 1971, some dudes at a Northern California college pulled some zany stunts in a basement and we’re still talking about it. No, this had nothing to do with playing Jefferson Airplane tapes backwards while on acid.