A boy named Monkey and his sister Orchid come to Dunhuang, China. While Orchid is exploring she finds a tunnel .The siblings go into the tunnel and are transported back three thousand years to a place called Huanbei .They meet a little girl named Sparrow whose parents got killed by King Di Xin . Sparrow finds a shard that can make whoever is holding it obtain the five powers of wind, rain, fire, mountain, and river. The powers can stop a war.