This drama tells the story of how the police arranged for special forces member Tang Shiyu to get close to the sister of drug lord Zhao Wenjiu in order to infiltrate the drug trafficking gang and capture him. Meanwhile, in the midst of the operation, Zhao's enemy, the notorious drug lord Chen Jiahua, enters China seeking revenge. Tang Shiyu finds herself caught between the two sides, collecting evidence while also making contact with Zhao's subordinates, including Hua Jiu. After a series of twists and turns, Hua Jiu begins to trust Tang Shiyu, and with her help, all the criminals are brought to justice. The story reflects how as a police officer, one must not only distinguish between right and wrong and punish evil while promoting good, but also must be willing to risk their life to rescue people in danger. Tang Shiyu, as a woman, demonstrates exceptional intelligence and the ability to turn danger into safety, not inferior to male team members.

In a kidnapping case at a convenience store where the hostages are successfully rescued, the police know from the victims the existence of a shocking P2P lending and human trafficking case involving many people. Meanwhile, SWAT team member Hao Miaomiao's cousin Zhang Lele is deeply caught in a P2P lending trap. While attempting to apprehend the criminal gang, Hao Miaomiao is accidentally abducted by the gang in Zhang Lele's place. And SWAT team member Tang Shiyu timely informs the criminal police team about what happened so that they can have a joint operation. In a series of battles of wits and courage, Tang Shiyu finds out by chance that Zhang Lele's boyfriend is a gang member. At the crucial moment when Tang Shiyu's identity is about to be revealed, the SWAT team finally manages to arrest the mastermind, free the imprisoned young girls, and bring all the criminals to justice.

A criminal gang led by Li Zixiong kidnapped the daughter of a wealthy businessman and demanded a huge ransom. The police selected three female SWAT members, Tang Shiyu, Ling Xiao, and Yang Fan, who had received years of training and possessed excellent skills and mentality. With their wits and strength, the three policewomen finally captured the criminal gang and rescued the hostage successfully.