At the end of the Qing Dynasty, Liu Zongxiang, the land tycoon of Hankou, laid a solid foundation for the formation and development of Hankou by building roads, demolishing city walls, repairing public dikes, and purchasing unowned official land that had not yet been silted up in the back lake. But the elite who built Hankou danced with the devil who might devour the city.

Tianhai, a criminal gang led by Huo, robs gold stores many times and repeatedly escapes from the police encirclement with their clairvoyant-like "operations predictions." Upon hearing that Mentor Zhang Chenmo and his apprentice are entrusted with a mission at a critical moment, the criminal police quickly lock in on the suspect who is out of the police’s sight; But Huo is fearless, frequently committing crimes in a high-profile manner to provoke the police... And so a cat-and-mouse game between police and criminals begins.

The boy in the mountain village was happy. When he was young, his mother fell into a trap and died in order to prevent poachers from poaching. Father ran away from home again, so far no news. The change of the family makes the happy and lonely character rarely communicate with others actively, and he has been with the monkey king "Great Saint" in the forest for many years. Years later, the improvement of the environment and the return of wild animals caused the greed of poachers. The film tells the story of being happy to lead the little friends and the monkey king "Great Saint" and the poachers to fight together with wisdom and bravery in the familiar forest.