Spain, 1973. Dictator Francisco Franco has ruled the country since 1939 with an iron fist; but he is now a very old and sick man. The future of the weakened regime is in danger. Admiral Carrero Blanco is his natural successor. The Basque terrorist gang ETA decides that he must die to prevent the dictatorship from continuing.
Cielo is a mother whose teenage daughter is kidnapped in Northern Mexico. When the authorities offer no support in the search, Cielo takes matters into her own hands and transforms from housewife into a vengeful militant.
During the last years of Pinochet's military regime, a group of militants from the "Manuel Rodríguez Patriotic Front" plan a prison break of political prisoners, through a tunnel that will take them 18 months to dig.
An off-duty SAS soldier, Tom Buckingham, must thwart a terror attack on a train running through the Channel Tunnel. As the action escalates on the train, events transpire in the corridors of power that may make the difference as to whether Buckingham and the civilian passengers make it out of the tunnel alive.