North America, in the near future. Two married couples and a son live in a strange apartment that is actually a fallout shelter. The world has been devastated by a nuclear war, and the group waits impatiently for the radioactivity to disappear, growing more and more antagonistic towards each other in the interim.

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.