导演: 艾略特·莱斯特
编剧: Nathan Parker / Ken Bruen
主演: 杰森·斯坦森 / 帕迪·康斯戴恩 / 艾丹·吉伦 / 扎威·阿什顿 / 大卫·莫瑞瑟 / Ned Dennehy / 马克·里朗斯 / 卢克·伊万斯
类型: 动作 / 犯罪 / 惊悚
制片国家/地区: 英国 / 法国 / 美国
语言: 英语
上映日期: 2011-05-20(英国) / 2012-03-16(中国大陆)

高清DVD版预告片：

Plot:The movie begins withDetective Sergeant (DS) Tom Brant (Jason Statham), a hot headed police officer from a turbulent South East London police station, beating up three youngsters, who are trying to steal a car, with a hurley.

Brant is approached by PC Elizabeth Falls (Zawe Ashton) asking to help her in passing her Sergeant's exam. Brant advises her to give it some time as she has come out of rehab recently. Falls had previously worked undercover for the drugs squad and became addicted. Brant is also warned by his superior (Nicky Henson) to control his actions. It transpires during a session between Brant and a police psychologist who mentions incidents involving bugging the Superintendent's office, beating a person unconscious in a billiards hall and the earlier assault on the three youths.Brant goes to the funeral of the Chief Inspector Roberts's (Mark Rylance) wife. The same night PC Sandra Bates (Elly Fairman) is shot dead by an unknown assailant.

Sgt Porter Nash (Paddy Considine) is transferred from West London Branch as Acting Inspector, in place of Roberts who is on extended leave. A boy approaches PC Falls in her home and asks for help as he thinks he killed someone during a gang attack. Falls asks Brant for a favour and he gives her the name of Detective Inspector (DI) Craig Stokes (Luke Evans). The Shooter, Barry Weiss (Aidan Gillen), calls reporter Harold Dunlop (David Morrissey) and tells him that he is the killer. He asks Dunlop to pick between seven and eight and when Dunlop picks eight, Weiss tells him that's the number of cops he will kill. Weiss walks down the street and shoots PC Theo Nelson (Joseph Dempsie), who is sitting in his car.

The South East London station is thrown into chaos due to the shootings. Brant meets with an informant Radnor (Ned Dennehy) who points him in the direction of Weiss, telling him that Weiss had previously boasted about setting a police dog on fire "for practice". Brant meets Nash and tells him about his personal problem of recurring blackouts. Nash tells him that Brant might be experiencing burn out based on his personal experience, as well as confiding that he once attacked a paedophile in his house as there was not sufficient evidence to convict him. Brant tells him about the lead and they both decide to visit Weiss. Meanwhile Chief Inspector Roberts rejoins his duty. At Weiss's apartment Brant recognises him as the guy whom he beat in the billiards hall.

剧情介绍：杰森·斯坦森所饰演的警察布伦特，因正义感太强而屡次出现殴打不守法的人而屡遭投诉、上报纸，上司颇为恼火。犯罪嫌疑人“闪电”策划了一系列枪杀警察的案件，但因作案手法老练而使警方难以破案。嚣张的“闪电”在每次作案前后都会和某报社负责犯罪版块的编辑邓洛浦报告他杀人的细节。邓洛浦为了自己出名而没有通知警方，每次都能让警方试图封锁消息的计划破灭，也因此被警方注意。 　　

布伦特接到为赚信息费而提供线索的线人雷德诺报告（悲剧的雷德诺一分钱没拿到还被布伦特教训了一顿），一家名为“孔雀健身房”的会员巴里.怀斯（即犯罪嫌疑人闪电），在youtube上传了一个杀害警犬的视频，并扬言这只是“练习”。布伦特去了新上司波特.纳什（同性恋）家里，并和他成了朋友，纳什告诉他自己是因为殴打了一个警察们明知是侵害儿童、但没有证据的犯罪分子，才被降职到了这个警局。布伦特和纳什检查了巴里.怀斯的住处，巴里.怀斯假装很友善但被布伦特怀疑。　 　　

紧接着，巴里.怀斯杀害了布伦特的原上司罗伯，并焚毁了他的住处。警察在现场没有找到任何证据信息，除了一个“孔雀健身房”的标识。雷德诺凭借自己的小聪明，发现了巴里.怀斯的踪迹，并发现了巴里.怀斯藏匿罗伯警服和手枪等的地方——巴里.怀斯长时间停放在在某车库汽车后备箱。他以此为筹码，向邓洛浦所要5万英镑的信息费。双方在某酒吧成交，雷德诺在去洗手间数钱的时候被跟踪已久的巴里.怀斯杀害，钱也被拿走。邓洛浦发现雷德诺被杀后报案并向警方坦白。 　　

警方根据邓洛浦提供的信息，找到了罗伯的遗物。但在调取停车场监控记录的时候发现摄像设备是坏的。布伦特随后返回警局，发现凶手杀人是有顺序的，就是每个逮捕过巴里.怀斯的警察都会顺序遇害，而下一个就是某黑人女警（该人之前曾在贩毒团伙当卧底，一直没有戒除毒瘾），警察火速赶往现场。凶手果然已经埋伏并准备杀害该警察了，但被半路杀出的陈咬金——黑人女警的邻居救了下来，但该邻居被凶手杀死，凶手逃窜到一家旅馆。 　　

警方发布电视通缉令，嫌疑人所在的旅馆报案，警察在抓捕过程中发现巴里.怀斯刚刚从旅馆逃跑，布伦特追了很久，最终在火车站抓到了嫌疑人，但由于证据不足，48小时候把他释放了，巴里.怀斯嚣张的离开并接受记者采访。在罗伯的葬礼上，巴里.怀斯穿着警服偷偷来到了葬礼现场，他这次的目的是杀害主角布伦特，布伦特和纳什却恰好设了陷阱，巴里.怀斯尾随布伦特到了一个楼的阳台……