Based on a true story. In the 70s, during the last stages of Franco's dictatorship, Txema, a basque construction worker, is arrested because of his connection to some terrorists who have just committed a murder. The secret service see in him an ideal candidate to infiltrate the terrorist band ETA and become a mole, so they try to offer him a deal if he will do so.
Two journalists investigate the criminal activities of the GAL (Grupos Antiterroristas de Liberación), a secret terrorist organization founded in the eighties and financed by leading figures in the Spanish government and security forces to hunt down and exterminate both members and collaborators of the terrorist gang ETA.
Manuel Horrillo has visited for 7 years the fields where the clashes between the Spanish troops and the rebels of the protectorate took place during the so-called Rif War, a forgotten war of the Spanish collective imaginary.
