Plot synopsis: The series takes you inside some of the world’s most notorious prisons. Every episode delves into the unique history of a specific prison, showcasing its wildest practices, infamous inmates, harrowing events, and ingenious escapes. Spanning 1,000 years, the series covers legendary institutions from the historic Tower of London to today’s high-tech ADX, where El Chapo is currently held. Through interviews with journalists, former correctional officers, and previously incarcerated individuals, the series offers an authentic glimpse into the inner workings of these prisons.