An orphan Buck always wanted to be a special agent. Since childhood, he studied martial arts. Once he helped the police in apprehending bank robbers. Buck is constantly confronted with suspicious facts about the past life of his father, who, according to a private investigator Liu, is a millionaire. The detective persuaded Buck to go to meet the "father" in Turkey, and then Korea. Buck does not realize that his father is actually a North Korean spy. Thus, the orphan becomes the addressee for the visits of mysterious people. He did not imagine that he would would get into a complicated case with the theft of a virus that causes lung cancer from the U.S. government's scientific department. And now he will have to use all his skills and courage to stop the virus from getting into the wrong hands.