公元2036年地球遭到入侵，最后一个机甲战士成了唯一的希望。

哈维尔和战斗机驾驶员的父亲离开圣路易斯里约科罗拉多这个边境小镇时，他还只是一个少年，经常憧憬着长大后可以在街道上参加地下世界的战斗。成年后，头发斑白的哈维尔已经是一个资深战士，被称为Callejero，和他在一起的还有他的拳击经理何塞，可是好赌的何塞因为欠下巨额债款，迫使两人必须依靠打假拳来还钱。最终哈维尔难以忍受，选择退出了比赛，独自回到自己那支离破碎的家庭。他试图开始新的生活并尝试与父亲恢复感情……

民国元年，军阀割据，局势动荡，各方势力蠢蠢欲动，南国通城大恶霸——金三生，勾结官商，大肆敛财欺压百姓。与此同时，一帮神秘的正义之士悄悄潜入通城，为了寻得改变国家命运的“藏宝图”。他们几经周折，劫富济贫，与金三生展开激烈斗争，国宝大金鸡的意外出现，整个复仇计划浮出水面，宝图的秘密层出不穷。这一场关乎私人恩怨与所有百姓命运的厮杀，最终走向了无法挽回的结局……

Traumatised by the death of an innocent. Killer for hire Bradley drops out of society, seeking meaning roaming the dangerous streets of a tough inner city ghetto. When he encounters a savage pimp and a desperate woman under his control Bradley finds the means to give battle to the inner demons that have eluded him. He embarks on a quest to save a young girl from the clutches of the brutal gangsters that trade human beings as currency. Drawn deeper into a sickening world in which age is no bar to exploitation and pursued by police, gangland villains and a mysterious agency known only as The Executive. Bradley discovers an ever deepening web of corruption and vice, and a dangerous game in which nothing is what it seems and no one can be trusted.