Taking place in the younger days of the famous monk, Tripitaka (known for bringing the sacred Bhuddist sutras from India to China), the film tells a fantastical adventure of the monk and his three disciples. On their way to the city of Shache, the monk narrowly escapes an attack from a group of demons. While trying to think of a way to rescue his disciples, he is captured by the king of reptiles and placed under the vigilance of Meiyan, an ugly demon who falls in love with the monk. Luckily, a princess from another galaxy rescues the monk, deeply affecting Meiyan, who pursues the two. In a twist of fate, the ugly Meiyan decides to help her beloved and teams up with the princess to rescue Tripitaka's three disciples.