El cor de la ciutat is a TVC television soap opera first broadcast on TV3 on 11 September 2000 and last broadcast on 23 December 2009. The show is the most watched fiction program in Catalonia, Spain, especially among female audiences, drawing around 28-33% of the audience with as much as 40% during season finales. El cor de la ciutat follows the lives of the people who live and work in the neighbourhood of Sants and Sant Andreu in Barcelona, Catalonia, Spain.

This film is based on the true story of the Catalan lawyer and engineer Narcís Monturiol i Estarriol (Figueres 1819 - Barcelona 1885) who invented the submarine.

In 1939, Ramón was a young man, caught up in his Barcelona family's involvement on the Republic side in the brutal Spanish Civil War. He and his family fled into exile ahead of Franco's troops. Now it is many years later, and he has come back to see how his old homestead fared in the intervening years. The only person he can find who is able to remember those years clearly is his family's old butler Claudio.

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.

Geltra and Pau don't know each other, she's 23 and tired of all the experiences she's gone through. He's 19 and just left home not knowing where to go or what to do. They will meet in this road trip while heading to a place in Delta de l'Ebre called "Casa Blanca".

Puzzle is a Spanish Drama starring Antonio Banderas