As the SUN CHILD and the MOON CHILD have gone into the palace without permission, they are caught together with LUP, TUD and CHING CHING. The king orders to have them beheaded. Incidentally, the prince is sick. SUN and MOON catch him and claim that they are able to cure him. The king agrees to delay the prosecution. In fact the prince is made sick by his uncle with magic. As their plan is spoiled, the prince's uncle determines to eliminate SUN and. MOON.

SUN and MOON drive the evil spirit out of the prince's body, however CHING CHING'S soul is transplanted into his body. BLACK EVIL takes him away. SUN and MOON rushes behind and finally kills him. They save both CHING CHING and the prince.

The prince's uncle is put behind bars as his plan is discovered by the king. His son SZE MA HONG hires YIN PIN CHIN to save him. The king orders SUN and MOON to arrest him.