After crossing the Flaming Mountains, Tang Monk and his companions arrived in Jisaiguo Kingdom several months later. Seeing the kingdom's monks treated as slaves, Tang Monk could not bear it. He took up a broom to sweep the Buddhist pagoda and had Son Goku investigate the theft of the national treasure, seeking justice for the monks.
The culprit behind the theft of the national treasure was the Dragon King's live-in son-in-law. Nine-Headed Worm, a former subordinate of the Flood Dragon Demon King, had received word from his old superior and did not dare provoke Son Goku too much. Once Tang Monk and his group arrived in Jisaiguo Kingdom, the whole brood of dragons shut their doors and stayed inside.
Unlike in the original story, Nine-Headed Worm did not send Benbo'erba and Babo'erben to walk into the trap. Without those two goofy little demons, Son Goku had no clue where to begin with the stolen national treasure.
But then the situation took a turn. Nine-Headed Worm managed to conceal his theft of the national treasure, yet Princess Wansheng's theft of the Queen Mother's Nine-Leaf Ganoderma Grass was exposed by a kind immortal passing by. Son Goku pondered it and decided to try his luck at Green Wave Pool. Sure enough, he stumbled onto the truth. The Wansheng Dragon King was too guilty to show his face, confirming the national treasure theft.
Even the Four Seas Dragon Kings did not dare provoke Son Goku, much less this bunch of backwater dragons from Green Wave Pool. Only the Hydra was arrogant enough to stubbornly refuse guilt. He could not defeat Son Goku, so he hid underwater and refused to emerge. Zhu Bajie went into the water to capture him, only to be beaten up by a crowd of aquatic creatures until his face