Cindy, an American FBI agent, travels to Hong Kong to investigate a newspaper editor, Wong Tak, who is suspected of printing counterfeit money using the newspaper’s presses. The American teams up with a rival reporter and her friend Yu, an undercover law enforcer. Cindy’s investigation takes a sharp turn, however, when Yu’s father, the prosecuting lawyer in the counterfeiting case, is kidnapped.

Little Tiger ventures from the sticks to the big city in search of his cop brother Big Tiger, an honest cop working in a corrupt system. Surmising that life in the police force was not his cup of tea, Little Tiger joins the Swallow Acrobatic Troop, which he excels in because of his kung-fu prowess. When a band of thugs from Chin Hung-yun's group attacks the troop, Little Tiger not only handily fights them back but also infiltrates their organization to destroy them from the inside. Meanwhile, Big Tiger's old flame Mary returns from America to join the revolutionaries. Big Tiger soon finds himself torn between his love of this girl and his orders to arrest all revolutionaries.

Shih Erh, a Taoist monk disciple, takes in a scholar named Tsui Hung-Chuen after he inadvertently burned down his house after battling a demon. Shih Erh and his master Wu Men-Chu house and attempt to protect Tsui from the demons and spirits that lurk nearby; however, Tsui encounters a benevolent female ghost named Mo Chiu, who is confined to the hands of the wicked King Ghost.