The film depicts ten years of Catalan history, from 1899 with the defeat of the Spanish side in the Cuban War of Independence to the Tragic Week 1909.

In the middle of the first world war, Barcelona is the center of multiple operations related to war, although Spain is a neutral country.

Barcelona, 1980s: in a tough urban neighbourhood inhabited by survivors and ruled by ex-legionnaires Gandhi, Fontán and Andrade - who are fighting a war for control of the streets - Nen and his friends Palito, Topo and Tostao dream of making it big in the world of rumba. But Nen discovers why his father, El Guacho - of whom all Nen has left is the memory of his brilliance as a rumba singer - disappeared many years earlier. He learns how the relationship between his mother, Chata, and Ghandi, leader of the neighbourhood, was connected to his father's disappearance, and so Nen is forced to balance his own desire for vengeance with his longing to triumph.

Adopted by a treacherous semi-scientific cult where extraordinary mental powers are common, extraordinary 12-year-old David begins an archetypal journey across two continents to find his destiny as Child of the Moon.

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.