In Siege of Madrid during the final days of the Spanish Civil War, Virtudes and Carmen, two young idealistic Republican faction (Spanish Civil War) militants, are encouraging their neighbours to keep faith in the cause of the Second Spanish Republic. However, the entry of Francisco Franco Nationalist faction (Spanish Civil War) into the city is eminent. Fearing the bloody repression that was coming, many Republicans are fleeing the country while others are unable or unwilling to do so.