Cell 211 (Celda 211)
Juan Oliver, a new prison officer, gets caught in the middle of a bloody riot after pretending to be an inmate to survive. Together with a ruthless rebel leader, he becomes embroiled in a deadly political game when an ETA hostage sparks national chaos. When betrayal is revealed, Juan must choose: loyal to his duty or joining the tide of violence? Who can be trusted when prison walls become a battlefield?