If there is a treasure in this world, where is it and what is it? Ye He Changgong (Francis Ng), a master from the Great Wall, hides in the Central Plains. One day, he sees Ming Yuexin (Pace Wu), a ninja from the Ryukyu Kingdom, on the street and is attracted by her piano playing. He falls in love with her. In order to obtain the "Secret Treasure of the Founding of the Taizu Kingdom", Ming Yuexin sneaks into the palace to steal the treasure map and fights fiercely with the three masters who are also looking for treasure. During the fight, the treasure map mysteriously disappears. In order to continue to find the whereabouts of the treasure, several people settle down in a small town on the border of Daming. Every full moon night, the four people will show their magical powers and continue to pursue the whereabouts of the treasure map. Xu Sanguan (Jaycee Chan), the richest man in the town, is very rich. The three masters are criticized by Xu Shao for the rent. Xu Shao is very talented, but he is in love with Tang Wei (Xie Na), the adopted daughter of Changgong and Ming Yuexin, but cannot get her heart. Ming Yuexin used her beauty to try to get information about the treasure map from the mayor Gu Yuejin. The treasure map unexpectedly appeared in the town, attracting many heroes from all over the world to gather in the town. Various people fought openly and secretly in the town, trying to take the treasure for themselves. At this time, Ming Yuexin led Tang Wei and Xu Sanguan to find the location of the treasure. However, after going through all kinds of things, Ming Yuexin finally discovered what the real treasure in life is.