As the heroes set off to the Western Mountains they are intercepted by a gang of rebel bandits, who worship the legend of the Monkey King. When the leader discovers Tripitaka can control the crown he plans to capture Monkey.

As Monkey travels further into his past Tripitaka must act quickly before he is lost forever. Using the sutra, she is able to find a way to go after Monkey, and in doing so unravels the mystery of his imprisonment.