The Challenge (2020) 1x2

With Franco's death, many political prisoners are released; some are true victims of the dictatorship, others are mere murderers, like the Etarras, who will go out and walk a path of death; like Jesus María Zabarte, the Butcher of Mondragón, one of the most bloodthirsty. ETA starts an open war against the State, with the assassination of businessmen, politicians and military, while bringing terror to the heart of the civilian population.