At the end of the 20th century, the killer organization "eight hundred Dragons" became bigger, and the leader, tearful Seven Dragons, was defeated by the defection of Ji Qiutang (Liu Han), so he led his men to Moscow to find the liaison "billiards" who withdrew from the rivers and lakes, in order to counter the rebellion. Billiards lives in the north, adopting a son and a daughter Yao long (Xu Guanjie) and Ye Mumei (Zhang Manyu). Due to being defeated by the two killers of the tear Seven Dragon and Ji Qiutang, billiards chose to cooperate with the tear Seven Dragon to lure Yao long into the opponent. Tears Seven Dragons in order to remove Ji Qiutang, rigorous training excellent Yao long, Yao long after amnesia at his mercy, fortunately accompanied by tears Seven Dragon daughter Ziyanzhu (Li Lizhen) teasing company. Yao long was trained to become a killing machine codenamed "Free Man" and eradicated the power of Ji Qiutang for the tearful Seven Dragons. During this period, Ye Mumei was found to be struggling to find him, but the two could not recognize each other. Miss Tiger, daughter of Ji Qiutang (Wu Jiali), cooperates with police officer Xintian (Sun Xing) to investigate the true face of a free man. Ye Mumei was taken away by the tearful Seven Dragons, and Yao long, who gradually regained his memory, wanted to take back what he had lost. This film is based on the Japanese cartoon "crying and killing God".