Tang Monk brings three disciples on a journey to the West. On the outside, everything seems harmonious. However, tension is present beneath the surface, and their hearts and minds are not in agreement. After a series of demon-capturing events, the monk and his disciples gain mutual understanding of each others' hardships and unease. Finally, they resolve their inner conflict and work together to become an all-conquering, demon-exorcising team.

The Primus extracts a Mixed Yuan Bead into a Spirit Seed and a Demon Pill. The Spirit Seed can be reincarnated as a human to help King Zhou establish a new dynasty, whereas the Demon Pill will create a devil threatening humanity. Ne Zha is the one who is destined to be the hero, but instead he becomes a devil incarnate, because the Spirit Seed and a Demon Pill are switched.

The world is on the brink of catastrophe in a chaotic age where evil demons roam. In order to keep evil at bay, a mysterious organisation from the pugilist world emerges. A new constable and a young girl with a mysterious past are also drawn into this group, and the group embarks on an incredible adventure.