One day, without knowing how or why, the birds of a big city leave, disappear. It is believed to be a protest against environmental pollution. Some children (the Regaliz group), then embark on an ecological campaign to get the birds to return to the city.

In 1909, the Rigau brothers are the owners of the most important textile factory in Feixes. When Francesc dies, Julià, a dark and ambitious ex-military man, takes over the steamer and confronts everyone to make uniforms for the Spanish army that is fighting the war in Morocco.