The story follows Yang Luo, leader of the Viper Special Operations Group, who has spent years carrying out covert missions overseas. With drug trafficking rampant at home, he is secretly ordered back to China to go undercover. After taking down the drug traffickers, he is assigned to eliminate a group of mercenaries who have infiltrated the country. While on domestic missions, he must conceal his identity and crosses paths with many beautiful women. In the end, Yang Luo completes a series of missions, earns the nation's commendation, and is named a First-Class National Hero.
