The story begins with Charlene Choi's first day as a female police officer, Ai Fang, becoming a regular policeman. After she accidentally caught an important witness in the stills, because the witness's daughter was taking part in a beauty contest, the witness said that he would never testify if he didn't protect his daughter, so the boss appointed her as a beauty candidate in the "Miss Youth" election for personal protection, which triggered a series of love-hate relationships in various competitions. Movie Plot: On the first day of duty, Zhong Aifang accidentally saves Wei Fei, an important police witness who is being chased by the killer. However, Wei Fei promised the police to testify in court to protect his daughter Jun Jun from running for Miss Youth in Greater China. Therefore, Zhong Aifang, who just joined the police force, will become an "overseas beauty" to participate in the "Miss Youth" campaign in Greater China. For the safety of his daughter, Zhong Sir, the father who loves his daughter, used his power to ask Yuan Zidan and two elite police officers to help him undercover to protect Ai Fang. He even disguised himself as a photographer to protect his daughter. During the competition, Ai Fang should be protected by three killers sent by Brother Tian. Can she reveal her identity and continue the competition? During this period, Ai Fang narrowly escaped Feng's assassination, but she unexpectedly became the focus of the competition. Near the final, an accident happened. Jun Jun has a crush on killer Ah Fu and wants to have dinner with him. As a result, he was drugged and fascinated, and Sir Zhong was caught on the way to follow them. One problem after another was placed in front of Ai Fang ... When I was preparing to deal with Mr. Zhong, Ai Fang and Yuan Zidan arrived in time and confronted Mr. Tian. Unexpectedly, the field was quite powerful, and it was knocked down with a trick called "one punch for all". When he was ready to do it, Lu Jing and Tiemei arrived in time, subdued Tian Ye and saved him. Under everyone's protection, Jun Jun successfully participated in the competition and won the second place!