Sun Walker thought he could easily borrow the plantain-fan to put out the fire of Fiery Mountain so that Master Tang could pass through. But the owner of the plantain-fan is Princess Raksasi and Bull-Demon King, whose child, Red Boy, despises Sun Walker. This is because Red Boy once tried to eat Master Tang’s flesh in order to gain immortality, but was subdued by Sun Walker with the help of Bodhisattva. After failing to capture the plantain-fan following a series of battles, Sun Walker transforms to look like Bull-Demon King and swindles Princess Raksasi’s plantain-fan.
To stand up for his wife and child, Bull-Demon King swindles back the plantain-fan by transforming to look like Zhu Bajie. The two then transform into various birds and beasts to battle. With Sun Walker struggling to overcome his powerful foe, the gods and heavenly soldiers appear to help subdue Bull-Demon King…