Inspector Tai On-na (Jessica Hester Hsuan) has always been comfortable in the logistic position of file management. Because of fate, he will work with the Yuanzu-level Tuoqiang senior sister Chan Sam-yuan (Joyce Tang) and the male god of the Flying Tigers team Mung Hon-sam (Moses Chan) to solve the case. (Hui Shiu Hung) arranges to join the unsettled case team, and a group of police officers with their own "characteristics", under the leadership of Hon-sam, pursue unsettled cases that are not of concern to the outside world. Hon-sam was dissatisfied with On-na and fought each other until it was revealed that Anna was afraid of using a gun because of being hijacked, and the two sparked love! On-na meets again with Lau Tat-Wah (Him Law), a tuition student who was destroyed many years ago, but he has joined the underworld... Under the impetus of feelings and guilt, can On-na get back the pistol and re-energize her, and become a new generation of "armed lady cop" ?
Jessica Hsuan
Dai On Na / "Diana"
Moses Chan
Mung Tan Sam
Joyce Tang Lai-Ming
Chan Sam Yuen / "Sammy"
Lo Chung-Him
Lau Tak Wa
Tony Hung
Zhang Yao Zhong / "Ronald"
Gloria Tang
Hui Chin Ying / "Nicki"
Benz Hui Siu-Hung
Lok Yik Wang
Fred Cheng Chun-Hung
Koo Dan Nei / "Danny"
Toby Chan
Kwan Sha Doi
Lee Shing-Cheong
Jin Hai Dong
Gabriel Harrison
Leung Siu Hei
Bella Lam Wing Tung
Fong Siu Kiu / "Joyce"
Bob Cheung Yin-Pok
Ma Kai Fan / "Yoda"
Leo Kwan
Hang Ji
Cheung Ka-yi
Judy
Maggie Wong Mei-Kei
Ching Sha Sha
Regina Ho
Miao Miao
Nicole Wan See Pui
Mr. X (drug dealer boss)
Moon Lau
Zhuo Yi Ting
Candice Chiu
Tse Yuen Yee / "Sheryl"