Terry (Teddy Robin), a diminutive rock enthusiast and manager of all-girl band The Playgirls, finds himself caught up in a chaotic espionage caper. After two bumbling Japanese hitmen tear apart a rock bar in search of the spy Yap and a hidden treasure map, Terry is wrongly blamed and storms out. He soon discovers the dying Yap in his car, and with her last breath she conceals the map on one of his posters. As the police close in, Terry falls for Inspector Nina, convinced that she shares his feelings, while spy chief Mak and his incompetent assassins continue their frantic pursuit of the missing map.

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.

Shop assistant in the electronics store, May Bao (Kent Cheng) - good-natured fat man, always ready to help those who need it. Therefore, he decides to help the new store employee, a fat Shan (Maria Cordero), which the evil boss (Richard Ng) forced to jump on the trampoline to the delight of visitors. His plan fails miserably, and Mai Bao, along with Shan, is fired-but the cheerful Mai Bao is accustomed to seeing positive in absolutely any situation.