After the corrupt former Mayor is killed by the peasants, poor janitor Juan Vargas is appointed new Mayor of a desert town in central Mexico. Although he tries to bring the motto of the ruling party to town (modernity, peace and progress) he realizes soon that there's nothing to do against corruption... except to become corrupt. Step by step, helped by his pistol, Juan Vargas becomes the law and the worst Major in the town's history. 故(gù)事(shì)讲(jiǎng)述(shù)墨西哥农(nóng)民(mín)杀(shā)死(sǐ)腐败的前(qián)市长后(hòu),不幸(xìng)的看门(mén)人(rén)阿瓦尔加斯在墨西哥中(zhōng)部(bù)被(bèi)任命(mìng)为一个(gè)沙(shā)漠(mò)镇的新市长,他努(nǔ)力(lì)提(tí)倡(chàng)执(zhí)政(zhèng)党(dǎng)的新意(yì)识(shí),到(dào)任不久(jiǔ)就(jiù)立(lì)下反对腐败的座(zuò)右铭(míng),但反对也(yě)开(kāi)始(shǐ)变得(dé)腐败,一步步在他的枪手帮(bāng)助(zhù)下,阿瓦尔加斯成(chéng)为法(fǎ)郎(láng)和(hé)镇上(shàng)历(lì)史(shǐ)最(zuì)恶劣的一页(yè)