The show follows the epic journey of the monk Tang Sanzang and his three disciples-Sun Wukong (the Monkey King), Zhu Bajie (Pigsy), and Sha Wujing (Sandy)-as they travel westward in search of Buddhist scriptures.

Devastated after her mom's serious accident and grief-stricken because she hasn't become the daughter she wanted to be for her mother, Jia Xiaoling finds herself transported back in time to the year 1981, where she meets her young mother before she was her mom.

During the Late Tang Dynasty, a manor is invaded by a demon cat and a sense of unrest befalls the capital of Changan. A poet is charged with investigating the case and meets up with a monk. The two work together and pull apart the thread of clues to reveal a history of truths leading to the events.