近未来的美国，全国失业率仅为1%，犯罪率则创下史上最低纪录，暴力几乎消失无踪。美利坚合众国仿佛进入宛如天堂的美好黄金时代，而促成这完美表象的则是前所未闻的大扫荡计划。国家为了有效释放公民心底的压抑和不满情绪，特别规定每年有一天的晚上7点之后举行长达十二小时的全国性大扫荡，届时人们将走上街头，展开完全不用承担法律责任的殴斗与杀戮。在这个畸形的时代，安保系统推销员詹姆斯·桑丁（伊森·霍克 Ethan Hawke 配音）大发其财，与妻子儿女过着养尊处优的幸福生活。又是一年大扫荡之夜到来，桑丁一家端坐固若金汤的豪华府邸，在屏幕前观赏杀戮之夜的表演。谁知这一晚，詹姆斯的儿子查理出手拯救了一名被追杀的流浪汉，桑丁一家不可避免被卷入血腥的漩涡之中……

George Washington McLintock, "GW" to friends and foes alike, is a cattle baron and the richest man in the territory. He anxiously awaits the return of his daughter Becky who has been away at school for the last two years. He's also surprised to see that his wife Katherine has also returned. She had left him some years before without really explaining what he done but she does make the point of saying that she's returned to take their daughter back to the State Capitol with her. GW is highly respected by everyone around him including the farmers who are pouring into the territories with free grants of land and the Indians who are under threat of being relocated to another reservation. Between his wife, his headstrong daughter, the crooked land agent and the thieving government Indian agent, GW tries to keep the peace and do what is best for everyone.

20世纪60年代，香港监狱乌烟瘴气，警匪一家，腐败横生。曾经专门为江湖兄弟打官司的律师陈兆康（吴镇宇 饰），在帮助资深小混混红孩儿（梁焯满 饰）打官司的过程中突发意外，导致出手伤了警察，结果两人双双锒铛入狱。典狱长（徐锦江 饰）和狱头食人鲳（龙方 饰）只手遮天，横行霸道，经常为了一己私欲对犯人大打出手。陈虽然看不惯他们的所作所为，却无能为力。而牢房内鱼龙混杂，各方势力云集，有人想对陈律师动手，有人则要一心维护，纷争一触即发。原本一身正气的陈律师显得格格不入，狱警和犯人又沆瀣一气对他进行整治殴打。想要独善其身，万般艰难……

1960年代初期，国内外敌对势力针对我国三年自然灾害带来的困难，展开了反华大合唱，并对我国实行全面经济封锁。钢铁厂炉长赵四海（于洋 饰）在党委书记王坚（郑大年 饰）支持下，承接了我海军特种合金钢的生产任务，他带领攻关小组日以继夜地试炼，决心炼出“争气钢”，打击“帝修反”。厂长白显舟（温锡莹 饰）却迷信外国专家，想用进口合金来完成冶炼，暗藏的阶级敌人应家培（张雁 饰）也借机进行破坏活动。由于试炼炸炉，老工人田师傅（娄际成 饰）受了重伤，白显舟趁机让赵四海停职检查，赵四海和广大工人对白显舟的错误决定展开了针锋相对的斗争，最终“争气钢”出炉了......