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.
姜鹿棉为保姜家，错做五年舔狗，方知攻略目标有误！真目标陆川暗恋已久，借计划靠近，两颗心渐拢，终成眷属。
精神医生Lilian Steiner就自己一个病人的死展开了调查，她相信这是一起谋杀。
