Description：Wang Qicong (Eason Chan) and Li Yaoting (Aaron Kwok) are detectives of the serious crime team who do not know each other. Cong is carefree and unkempt, while Ting is sharp-witted and pretentious. Two police elites with different personalities come together because of a case, and policewoman Feng Baobao (Charles Cheng) temporarily becomes their boss. The case was triggered by KEN (Huang Pinyuan). He and his girlfriend planned to steal a priceless piece of jewelry, and they also discussed retiring from the underworld after they got it. As a result, the mantis stalks the cicada, while the oriole is behind. The treasure they stole was spotted by another group of people. They chased and captured KEN, while his girlfriend escaped with the jewelry. She made a request to the police: she was willing to use this necklace in exchange for KEN's safe return. The police began to track down the gang that kidnapped KEN. During this time, Cong, Ting and Feng Baobao had different opinions and conflicts continued.