Shanghai Shanghai

Little Tiger (Yuen Biao) left his hometown and went to Shanghai staying with his elder brother, Big Tiger (George Lam), who is a police officer. However, he accidentally got involved in robbing the National Salvation Funds. He also met Pao (Sandy Lam), a member of an acrobatic troupe, in this incident. Little Tiger was later invited to work for the triad society due to his outstanding fighting skills and swiftness.Big Tiger was ordered to protect Mary Sung (Anita Mui), the goddaughter of a Shanghai celebrity Mr. Chin (Sammo Hung) and his ex-girlfriend, who came back from America recently. Mary, a member of the revolution party, had been investigating the loss of the Funds. Eventually she found out the in-charge behind the curtain of this robbery was her most respected godfather. Could she bring Chin in front of the law and give back justice? Would Big Tiger and Little Tiger be able to sort out their conflicting identities? Could Big Tiger and Mary be together again?