取得西經的唐僧師徒四人因為長期在天宮無所事事，他們失去了“勇氣”這個品質，導致失去了法力，也被貶下凡間。想要重新回到天宮、恢復法力，他們需要在凡間尋找“勇氣”?？墒撬麄兊侥睦飳ふ夷?？前路茫茫之際，他們遇上了叫賣“天堂圣水”的牛魔王。牛魔王心里小算盤一算，居然要打唐僧師徒的主意，這次可有得鬧了

          The four Tang Priest and his disciples who obtained the scriptures in the west lost their "courage" because they had nothing to do in the Heaven for a long time, which led to the loss of their magic power and were banished to the earth. To return to Heaven and restore their powers, they need to find "courage" on earth. But where would they look for it? The road before the vast occasion, they met selling "heaven holy water" cattle devil king. The cow devil king's mind small abacus to calculate, actually want to hit Tang Priest and apprentice's idea, this can have to make trouble