Tripitaka and the ever-impatient Monkey begin their perilous journey. Arriving at a village terrorised by a greedy and lustful monster, Monkey thus faces the wrath of Pigsy and his deadly muckrake. To cross the Mighty River of Flowing Sands, they must first pass the cannibalistic water monster Sandy. A sandstorm, an army of tiger ghosts - will Tripitaka end up as cat food, or will Monkey save the day?

Monkey, Pigsy, Sandy, Tripitaka and the horse enter a land ruled by the demonic Golden Horn and his wife, Silver Horn. Bewitched by a beautiful lady, Pigsy discovers that all is not what it seems. An old woman proves too much to handle even for Monkey. Tripitaka and Sandy find themselves a bit tied up when left to their own devices. When a mysterious Taoist magician causes Golden Horn to lose his bottle, things start to look up.

In his mountain kingdom, the immature King of Youth dictates that everything old is useless. When the pilgrims approach, he decides to kidnap Tripitaka to gain the attention of Heaven and Earth, in an attempt to stop living in the shadow of his father, the King of Ox. When Monkey's powers prove no match for the King's fiery temper, and Pigsy and Sandy are otherwise engaged, who will save Tripitaka?

When Monkey kills a girl and her elderly parents, Tripitaka is left with no choice but to punish him and send him back home to his mountain of fruit and flowers. No one believes Monkey's story that the people he killed were red, blue and yellow demons disguised as humans. When the pilgrims later discover that Monkey was telling the truth, Tripitaka finds himself in grave danger, and wishes he'd never denied the demons' existence.

An invisible wall separates the land of night from the land of day. The blood-sucking Queen of Night terrorises the inhabitants of her land, while everyone in the land of day is forced into slavery by their merciless king. Tripitaka finds the task of reuniting night and day very difficult, especially when Monkey becomes hopelessly besotted with a pretty girl and Pigsy falls for a lady of the night.

The once-prosperous land of Codslow is ruled by three animal-strength immortals, and its enslaved people are dying of hunger. The immortals depend on pearls, paper and wine for their magical powers. The pilgrims offer to help a young girl and her family restore their land to its former glory. When lovesick Pigsy almost becomes roast pork, Monkey hatches a plan to end the immortals' reign of terror.