Several years after having been decommissioned following a bloody riot, one of the oldest and most notorious prisons, in the middle of a large desert, is reopened to serve as the setting for a scary reality show. The plot follows, 24 hours a day, the extreme physical and psychological challenges that eight participants must face in order to win a prize of two million dollars. More to the point, they will be tested to the limit by their own obsessions, guilt and fears. Completely isolated from the rest of world and not knowing anything about one another, the participants, each with an unsavory past, linked to crime, will have to face their own personal demons, rooted in their obsessions, guilt and phobias. In a climate of fear and despair, death is constantly lurking and the suffering is intense, especially after the transmission is unexpectedly interrupted and everything takes a radical change in this game of terror. Even the program’s host is cast to his fate, alongside the participants, and all become entangled in a web of ruthless ambition, madness and violence. From that moment on, each one has to fight just to stay alive.