In this landmark documentary, journalist Richard Madeley goes inside CECOT, El Salvador’s sprawling maximum-security prison and one of the most controversial and toughest in the world.

Built to hold up to 40,000 prisoners, CECOT is home to thousands of alleged gang members, murderers and rapists under an exceptionally strict regime. Across two days, Richard gets access all areas, confronting the realities of daily life behind bars: overcrowded concrete cells, lights on 24/7, no family visits, and severe punishments for anyone who steps out of line. Drama ahead, and no easy answers.