Flora and Victor are fun, modern, caring parents. That is, until they decide to get a divorce, and the perfect job opportunity turns up for them. They now have one problem: custody.
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.