After having fought against the corruption of the Spanish colonial agents in California, Don Diego de la Vega lived with tranquility the following years and was able to rest Zorro. After declaring Mexico's independence, Don Diego notes with concern that some adventurers whose greatest exponent is Colonel Orduña, take advantage of that moment to take personal advantage, even at the cost of that independence and freedom. De la Vega's son, a regular participant in political affairs and a lawyer, does not believe in violating the strict law, but to his father's surprise, his daughter is the one who shows skills and mettle to take his place. He decides to prepare her to avoid together the abuses and the plans of the conspirators. However, there will also be a female counter-figure, Countess Concepción de Arzagá, Orduña's girlfriend, who participates in a dark sect and is the real brain behind the colonel's abuse of power and crimes, to the point of planning to kidnap her own niece to extort money from her brother-in-law. This kidnapping will open a comic streak in the action story, home-alone style.
