It used to be the most powerful royal house in the world. Today, it is the most modern. Former King Juan Carlos once helped restore legitimacy to the Spanish monarchy—as a guarantor of democracy, unity, and peace. Today, King Felipe must prove whether he can live up to the responsibilities of his office and reconcile the country amid the most severe crisis in its 40-year history of democracy. At the start of the major anniversary year of 2018 and in the midst of the Catalonia conflict, the film takes a close look at father and son and looks back at the history of the Spanish monarchy.