Set in a hypothetical present-day Spain, in a divided country on the brink of political chaos, the series follows Antonia (Veki Velilla), a young investigative journalist who stumbles by chance upon a conspiracy hatched decades ago: the existence of a cryogenic super agent, García (Francisco Ortiz), created in a laboratory in the 1950s by General Franco's secret services. A perfect soldier with superhuman strength and programmed to obey orders without question, he has just been awakened by Antonia after six decades of being frozen. García feels disoriented and confused in a Spain he finds completely changed. The old world collides with the present as García and Antonia learn to work together as they become embroiled in a political conspiracy that threatens to end democracy in favour of a brutal new dictatorship.