Three thousand years ago, in northern China, the emperor borrowed the dragon ball from the dragon to resist foreign invasion, and promised to return the ball to the dragon after victory. However, the emperor died in the battle, and the dragon ball disappeared. In a flash of time, a joint Chinese-Australian archaeological team excavated the emperor's tomb based on the tomb map handed down from that year. At this time, the boy Qiao Xi and the girl Lin Jin accidentally embarked on a mysterious journey to find the dragon ball. The claws of the tomb robbers are following them.