Violeta lives with her uncle because her mother died soon after she was born and she never knew her father, she stays with her grandmother from time to time as well. Violeta has a boyfriend named Ángel who gives her a pet dog. While at her grandmother's house, Violeta discovers a time machine that her grandfather built, so she and her friends travel to different time periods. They visit several important events in Mexican history, learning these stories firsthand.

圣安德列斯镇的里戈韦托·巴尔德斯和弗朗西斯卡生了个漂亮的女儿阿方西娜，胡斯托·拉米雷斯和玛加丽塔得了个独生儿子亚历杭德罗。两人几乎同时出生。但由于拉米雷斯是镇上的富户，有钱有势，两家洗礼仪式的排场相去甚远。
弗朗西斯卡对镇上人对她另眼相看耿耿于怀，对里戈韦托的哥哥萨尔瓦多神父只派一个末等神父为女儿洗礼也十分不满。
玛加丽塔怂恿丈夫胡斯托为儿子买下里戈韦托的“清泉”。里戈韦托不答应。于是胡斯托告诉里戈韦托，里妻对他不忠。里戈韦托回家逼问弗朗西斯卡。当弗朗西斯卡得知是胡斯托说她坏话，执意要找他评理。后来，她在教堂门口碰上胡斯托。两人终于道出了过去的情人关系......