 The de la Vega s are surprised the poor farmer Maceas offers them a free load of beans, because he believes Zeus, a fine stallion he nursed to racing shape after don Esteban ordered it put down, will win him a fortune from a certain señor Herrera. The whole pueblo bets on the race, after don Diego won a friendly challenge accepted by don Alejando, but remarked the stranger held his horse back, the alcalde even 4,000 pesos of taxes collected for the governor, but Zeus loses, however as soon appears only because he was poisoned; the alcalde confiscates everything Maceas owns,  including this miserable horse . The only one who can win the fortune back is Zorro on Toronado, but appearing when and where the alcalde knows him to is reckless...