Mario Colomer, prime minister, is burdened by overwork. His problems seem solved when his assistants tell him about Juan Brandel, a possible substitute, just like him physically, but with a funnier and more adventurous personality. At first the plan seems to work and the politician begins to gain popularity. The plot thickens when the 'original' becomes jealous of the 'copy' and the substitute exceeds his functions.
The arrival of Francis, who owns a factory of surgical material in New York, caused a real stir in a family composed by her grandfather, Pepe, the son, Jose, and grandson, Pepito. Pepito falls in love with her even though Francis consider him a child. But Don Jose is also in love with the American. This situation creates a difficult situation between parent and child, that Francis seeks to remedy returning to the United States. But the grandfather, Pepe, has the solution ...
After the death of Queen Mercedes, Alfonso XII's first wife, the problem of the succession is raised. The monarchy needs a heir and the King choses María Cristina from Habsburd to be the futur spanish queen. But Mercedes memories will be against the marriage and the long-awaited son will born when Alfonso is already dead.
Alfonso de Borbón and his cousin María de las Mercedes de Orleans fall in love and, although both families do not maintain good relationships, young people marry when Alfonso became king of Spain.
