The story of two men on different sides of a prison riot -- the inmate leading the rebellion and the young guard trapped in the revolt, who poses as a prisoner in a desperate attempt to survive the ordeal.
- Genre: Action, Thriller, Drama
- Studio: Canal+, Telecinco Cinema, Vaca Films, La Fabrique 2, Morena Films, Sofica Soficinéma 4
- Keyword: prison cell, penitentiary, prison guard, flashback, jail, eta terrorist gang, walkie talkie, prison riot, surveillance camera, wrist slitting, forced to strip, gagged
- Cast: Luis Tosar, Alberto Ammann, Antonio Resines, Carlos Bardem, Félix Cubero, Marta Etura