After Cheng Ji， the leader of a drug squad in the Lingnan police department， died from his mission， a police academy student Lin Qiang was thought to be a fellow dealer by the drug dealers in mistakes. Therefore， the squad sent her to be undercovered with a hidden identity. When she got into Qiu Hu’s Group， she met Zhang Xian He， the adopted son of an overseas drug lord Ma Hong Tao. While pretending to be in love with Zhang Xian He to steal secrets from him， Lin Qiang is also dealing with the two drug lords Qiu Hu and Liu Bing. However， everything is actually a plan of Ma Hong Tao.