美国加州,贝卡家族是镇上最富有的农场主。贝卡家的公子迪亚哥,从小就是一位特别有正义感的少年,喜欢帮助弱者。迪亚哥的母亲很早就过世了,女佣玛丽亚全心全意地照顾着整个家庭。从小与迪亚哥一起长大的罗丽塔是镇上最漂亮的姑娘,即使家中很富有却仍然很有正义感和同情心。一天晚上,迪亚哥抱回了生重病的孤儿贝纳德。迪亚哥像弟弟一样的照顾他,很快贝纳德就成为了贝卡家的一员。不久,迪亚哥被父亲送去西班牙留学。在学习期间,迪亚哥专心学习剑术,练就了一身超群的本领。回到家乡后,迪亚哥化身蒙面侠佐罗,与司令官雷蒙展开了殊死搏斗。为了掩盖自己的真实身份,迪亚哥假装胆小怕事、唯唯诺诺;可一旦戴上面具,他就化身蒙面侠佐罗,是一位战无不胜的正义使者。 本部52集日本动画片《怪杰佐罗》改编自西班牙经典文学作品《佐罗的传说》。Don Diego de la Vega returns from his study trip to discover his homeland is under the army's dictatorship. Diego, refusing to watch idly, disguises himself as Zorro to protect the weak and oppressed. Diego is not a coward but he is unable to win the affections of his sweetheart, Lolita Prideaux, who is attracted to other more noble men. Diego serenades Lolita as Zorro and fights the evils of his homeland, hoping to capture her heart. Diego is accompanied by Bernardo, a boy wearing a similar costume, dubbed "Little Zorro", and a small brown dog.