The crooks in London know how it works. No one carries guns and no one resists the police. Then a new gang appears that go one better. They dress as police and steal from the crooks. This upset's the natural order of the police/criminal relationship and the police and the crooks join forces to catch the IPOs (Impersonating Police Officers), including an armored car robbery in which the police must help the gangs to set a trap.
导演王建闯夜访荒村，从独守古村数十年婆婆口中得知贪念引发的灭村惨案：恶徒胡仁成夺金脉，毒杀恩亲、沉湖灭口，终被师兄德叔以命铲除。德叔以身堵泉，湖水重清。而讲故事婆婆正是当年发誓守护此地的德叔小徒弟——善恶有报，守护不息。
