Coslada, near Madrid, Spain, October 2015. Hundreds of extras are trapped in a huge stage where they pretend with hysterical joy that they are celebrating a party that will be broadcast on television on New Year's Eve. But more than a week later, the clash between several staff members threatens to prolong indefinitely such a maddening nightmare.

While grieving the loss of one of its own, the Ministry is called upon to right historical wrongs from 16th-century Mexico to 20th-century France.

From medieval Spain to 1924 New York to 1981 Madrid, an experienced and enhanced Ministerio team continues its top secret time-traveling mission.

Spain, 1950s. Montse's agoraphobia keeps her locked in a sinister apartment in Madrid and her only link to reality is the little sister she lost her youth raising. But one day, a reckless young neighbor, Carlos, falls down the stairwell and drags himself to their door. Someone has entered the shrew's nest... perhaps he'll never leave.

Nat, una joven e inexperta traductora, acaba de mudarse. Su casero, que le regala un perro como gesto de bienvenida, no tardará en mostrar su verdadera cara, y los conflictos en torno a la casa alquilada —una construcción pobre, llena de grietas y goteras— se convertirán en una verdadera obsesión para ella.