Cousins Thomas and David, owners of a mobile restaurant, team up with their friend Moby, a bumbling private detective, to save the beautiful Sylvia, a pickpocket.

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

Perros Callejeros is based on the juvenile delinquency of the 1970s and 80s in Spain. The story is set in Barrio de la Mina in Barcelona one of the most conflict neighbourhoods in Spain. The characters chosen were real juvenile delinquents all with criminal records, which the director used to give the film a realistic touch. This film is very powerful and dramatic, it shows how these kids were brought up to survive on the streets.

Lozana, a young, beautiful and clever woman decides to move to the city after a tragic love story. There, she meets Rampin, a naughty rascal who soon finds out that her wit surpasses his own by a handful. When he falls in love with her, he can't help suffering as he sees how she plays not only with him, but with all of her lovers as well.

Spain, 1936. The Civil War breaks out. In a village near Barcelona, several families decide to continue living in their summer houses until the violence ends.

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.