A powerful, absolute monarch, the two sons of a fisherman in the service of an oracle because he has heard that one of them, Hoesl, one day about his empire will prevail. He intends his brother, Catalano, to be used to kill him. The daughter of the king, Vejmelkova is in love with Hoesl. When the brothers get the three gold contract plumes of a mythical bird to get, says Catala...