This drama tells the story of female special police officer Sheng Nan who encountered bandits robbing jewelry and taking hostages while attending a jewelry exhibition. As a female special police officer, Sheng Nan overcame various difficulties and, under the deployment of the bureau leaders and with the cooperation of her team members, relied on her excellent tactical and psychological qualities to fight back in the treacherous traps and assassinations. She fought with all her might and struck precisely like a sharp knife and armor, and finally smashed the conspiracy of international financial criminals and caught them all in one fell swoop.