Two best friends and cop partners become the subject of a beautiful news reporter's documentary. The two soon find themselves competing for screen time as well as the love of the reporter while after a murderous arms dealer.

Smart (Kent Cheng), a sailor, returns from sea to his family to help with the family business and raise money for repairs, also teach people about love

Mr. Lau (Kent Cheng) is a seedy detective who sets up cameras to record an illicit affair. Things go awry however when a hideously glam rock band checks into Lau’s room, and gets a free show via his hook-up. Meanwhile, silly thief Donald Ng (Richard Ng) uses ninjitsu to fool the locals while a womanizing tour guide (Eric Tsang) gets stalked by not one, but two pretty women (Cherie Chung and Pat Ha). And Buddy Cheung (Jacky Cheung) is a lowly mechanic at the hotel who lusts after gorgeous executive Sunflower (Joey Wong). But his tomboy co-worker Boy George (Cecilia Yip) secretly pines for him.

Tuba is a fainthearted cop who prefers to play in the brass section of the police band to pounding the streets. One day, he finds himself caught up in an extortion case with trigger-happy detective Rambo Chow. When Rambo gets fatally wounded, he makes a half-hearted vow to avenge his death. Tuba is more than a little surprised when Rambo's spirit returns to make sure the timid cop makes good on his promise. Backed up by his hotshot partner Cheung, Tuba eventually summons the gumption to track down the baddies.

Two Hong Kong cops are sent to Tokyo to catch an ex-cop who stole a large amount of money in diamonds. After one is captured by the Ninja-gang protecting the rogue cop, the other one gets his old Orphanage gang, dubbed the "Five Lucky Stars," to help him. They don't like this much, but they do it.