Set in rural South of Spain in the 19th century, tells the story of group of outlaws, from very different origins, trying to survive, hiding from the law enforcement officers in caves in a hilly area, and their struggle against the evil mining company that exploits the poor people of their home village.
Beliche, a naive postman, suffers from depression because he has almost no letters to deliver. The neighbors to whom Beliche takes their correspondence decide then to launch a plan to receive many more.