After the four masters and disciples of the Tang Dynasty returned from studying for Buddhist scriptures, Chang'an of the Tang Dynasty returned to its prosperous times. However, there were many crises hidden behind the apparent prosperity. People in the city frequently disappear, monsters run rampant, and the remnants of the chaotic energy are waiting for opportunities to cause chaos. In order to protect the peace of Chang'an, Tang Seng decided to summon Sun Wukong, Zhu Bajie and Sha Seng again to investigate these mysterious events.
The four masters and apprentices worked together, and after a hard battle, they finally rescued the abducted people and discovered clues to the five artifacts. As the investigation deepens, they realize that the seal of the Chaos Air is loosening, and they must gather five artifacts to re-seal the Chaos Air. So they embarked on a difficult journey to find the artifact.
In dangerous places such as the Flame Mountain, Ice Field, and Thunder Mountain, the four masters and apprentices experienced many tests and obtained the Sword of Heavenly Fire, the Shield of Ice, and the Hammer of Thunder respectively. After returning to Chang'an, they continued to patrol to ensure the safety of the city. However, the power of chaos is still secretly surging, and the appearance of the black-robed monster makes them alert to a larger conspiracy.
Tang Monk discovered clues about the Book of Heaven in the ancient books. This ancient artifact contains the secret of completely sealing the energy of chaos. In order to find the Heavenly Book, the four masters and disciples went to the Heavenly Palace, underwent many tests, and finally found the Heavenly Book in the secret realm of the Heavenly Palace. Returning to Chang'an with the Book of Heaven, they performed the final sealing ceremony based on the records in the Book of Heaven, completely sealing the energy of chaos.
