All kung-fu masters rush to attend the FIVE TRIBES CONFERENCE held every five years at BLOOD POO. During the conference, all tribes send their representatives to challenge each other and the one who can survive will be regarded as the leader of the land for five years. When the tournament reaches its cirtical moment, the two Persians, SUN KING and MOON QUEEN, arrive at the occasion. With the SACRED COMMANDMENT, they defeat all five tribes. In order to get the SACRED COMMANDMENT, the five tribes led the two Persians drink the poisonous wine. WHITE and YUET help them to flee from the five tribes. The two Persians appreciate their kindness and give them the SACRED COMMANDMENT before they die. Hiding the SACRED COMMANDMENT a secret place, WHITE and YUET escape from the five tribes.

WHITE and YUET get married and together they have a son and a daughter, namely MUN and FLING. Their escape comes to an end when they are caught by the five tribes. After handing out the fake map which supposed to locate the hiding place of the SACRED COMMANDMENT, WHITE and YUET get killed, whereas their two children are saved by the GHOSTLY OLD MAN and the UNFEELING NUN.

Both MUN and FUNG are well brought up and become two kung-fu masters. When they both attend the FIVE TRIBES CONFERENCE, they cannot recognize each other because of their long departure. After MUN's identity is disclosed the UNFEELING NUN sends FUNG to follow him secretly in order to investigate the hiding place of the SACRED COMMANDMENT.