影片讲述了一个职业罪犯（梅尔·吉布森 Mel Gibson 饰）被墨西哥警方抓捕后送往一个充满毒品和犯罪的监狱，在一个9岁男孩的帮助下，他学会了如何在这样的监狱里生存下来。 本片由梅尔·吉布森和《启示》（Apocalypto）的原班人马在墨西哥的伊格阿连德监狱拍摄完成。梅尔 ·吉布森不会亲自执导这部影片，而是让《启示》的第一助理导演Ad rian Grunberg来当导演。不过这部影片的剧本是吉布森自己创作的，而且他也将亲自主演。
“墨西哥人”不是人，而是一把古董手枪。附带在它身上有一个传说，故事的悲剧收场，让这把枪沾上了凶险的不祥之兆。每个持有它的人，都会遭来不测。 如今，小混混杰瑞（布拉德·皮特 Brad Pitt饰）面临着抉择：要么接过黑帮大佬的任务，远赴墨西哥把这支枪找回来；要么乖乖地听漂亮女友萨蔓莎（朱莉娅·罗伯茨 Julia Roberts饰）的话，和黑道断绝来往，做回一个光明正大的人。当然，得罪黑帮无异于惹火烧身，杰瑞再三考虑，还是决定把“墨西哥人”寻回，干完这桩事情就金盘洗手。 风尘仆仆的赶到墨西哥后，杰瑞在异乡经历着曲折的寻枪过程。“墨西哥人”的神秘魔咒也渐渐浮现——萨蔓莎遭到了黑帮老大的绑架，以此来威胁杰瑞务必把枪完好带回。杰瑞的前路，面临着凶险的黑帮势力、手枪的古老魔咒，更有爱情的真谛等待他发现。
aan Singh and Prithvi Singh's families have been locked in a property dispute in a Court in India. When the Court gives a verdict in favor of Prithvi, Maan hires a bandit, Panna Singh, to kill Prithvi and all of his family. Panna only partially succeeds, and retreats badly wounded to a dense forest to escape Prithvi's wrath. But the harm has been done, Prithvi has lost his sister and other family to this vicious assault, and has vowed to avenge this by killing Maan's family, and he does so with partial success, thus incurring the wrath of Maan's Police Inspector brother, Suraj Singh. Prithvi then goes into hiding and is now called Daku Prithvi Singh. The only survivors from his family are his daughter, Chandra, his aunt, and her son, Himmat, while Suraj Singh lives with his son, Akash. Years later, an educated Akash meets with an uneducated Chandra and both fall in love with each. When their respective fathers' find out, they are told not to see each other again and their marriages' ...
马拉斯表面上是一家车行的修车工，但暗地里却做着偷车的营生。一次他在外出工作时自做主张偷了一辆黑色奔驰车，却发现自己无意中卷入了一场地下毒品交易和谋杀案中，因而遭到了警察局长斯图帕尔和黑帮头目戈卢布的双重追击。为了不牵连家人，马拉斯只能投靠与黑帮有勾结的斯图帕尔，从此踏上了一条命运未知的道路。
