A year ago, Ricardo and Felipe, in charge of taking the children to a camp, stayed outside the train leaving the children inside. Clara no longer trusts them and this year she decides to take the children personally with the help of her friend Susana. However, now they will be the ones who, as a result of an accident, are separated from the children.

When two friends lose their jobs and find gigs as children's entertainers at a luxury hotel, they sneak in their kids to give them a summer vacation.

Christmas is coming. The children accidentally break a Nativity scene figurine from their father's collection and must by all means get an equal one, the problem is that it is a unique antique piece. Sara, the eldest daughter breaks up with her boyfriend, Ocho, who will try to recover her favors with the help of her father-in-law, Javier. Precisely Javier's father-in-law, Marisa's father, will be welcomed into the family home to spend the holidays after her recent separation, which will not leave Javier's mother, Milagros, indifferent. Rocío, the folklore of the family, who has been playing the Virgin for several Christmases, is relegated this year to playing the shepherdess, something that her father, Javier, is not willing to assume.

When Ricardo, a responsible father, decides to personally take his son to a camp in Asturias, other parents propose that he should also take care of their children. When the train is about to leave, Felipe, a flamboyant individual and grandfather of two of the children, shows up at the station.

The eldest of the family, Sara, comes of age and brings chaos to the family by announcing her intention to marry Ocho. Javier and Marisa try to avoid it at all costs. At the same time Dani has an existential crisis, Paulita feels jealous of Cris, Carlota announces that she has found a boyfriend from a high society family and Rocio has finally managed to be cast in her first film.

Valladolid, 1989. David and Layla are 13 years old, they love "Hombres G" and they fall madly in love with each other. Together, they get into trouble, sing and dance to the songs of their favorite group. Valladolid, 2022. After 30 years without a verse, David and Layla finally have the chance to reunite. In both eras, our protagonists fight to keep their first love alive.