Volatile triad boss Duanmu (Collin Chou) is in search of three pendants that are believed to hold parts of the map leading to a hidden treasure. He learns that the pendants are now in the possession of three teenagers, so he dispatches his gang henchmen after the kids. Luckily, super cop Lin Dan (Donnie Yen), armed only with his deadly martial arts skills, is there to save the day!
On the way to a visit of their uncle in Thailand, Fatty bumps into a young girl named Baiyer. Daughter of a famous anthropologist, Baiyer has in secret possession a golden necklace on which is engraved the map of an ancient treasure by her father. Having witnessed the murder of her father by Scorpio. They befriend with each other and return to Bangkok.
