Carlos Alonso and Mercedes Cebrián are parents of fifteen children of different ages. They all live with the grandfather and depend exclusively on Carlos work (moonlighting rigger) as the sole breadwinner, which puts them in constant financial trouble. They also have the generous support of Juan the godfather, baker by profession. Through various events, we are told of everyday family life: a regular and full-time day of the clan; First communion of two sons; finals of nine of them; holiday on the Costa Dorada (Tarragona), propitious time for the romance of various members of the clan; the loss of Chencho, the baby of the family, in the Plaza Mayor of Madrid and its subsequent recovery. The arrival of their first television serves to announce the arrival of a new child.