Spagna, oggi. Dopo uno scandalo finanziario, il re Alfonso XIV si ritirò dalla vita pubblica. Sua figlia Pilar, festaiola e irresponsabile, deve subentrare per alcuni mesi. Non è l'opzione migliore, è l'unica.
Guillermo, Pilar's secretary, tells her that her best friend, Camino, may be hiding compromising material about her. Pilar doesn't want to believe it and invites her to the first act as Head of State. Guillermo has an ace up his sleeve.
To wash Pilar's image, she and Guillermo get a public university to name her an "illustrious student" even though she has not studied there. Everything is carefully planned but there is something they don't count on.
Pilar presides over the inauguration of the judicial year. At the traditional meal afterwards with the judges Pilar will discover something that will disrupt the image she has of her father and her own life.
Richie renounced the British Crown and now travels to Madrid to present his memoirs. In the book he does not talk about the romance he had a few years ago with Pilar. The princess will discover something remembering that night.
At the funeral of Guillermo's mother, Pilar tries to convince him not to resign. In the hours before, the princess discovers that, for some people, the monarchy still means something worth defending.
Alfonso XIV returns to record the Christmas message, does not resign and apologizes for having put his immature daughter in charge of the country. The powers of the State alert Pilar that her father has lost his grip.
