Plagued by bulling from the Lu family, Lin Dong decides to enter the competition in Qingyang Town. By chance, he acquires a mysterious ancestral talisman and becomes a kung-fu master overnight. As the young man takes on the role of the Dragon Fist to fight off the bullies, he is also targeted by various forces when the secret of the Ancestral Talisman is leaked, and a battle between power and freedom ensues.

After obtaining the power of the Ancestral Stone to revive the Lin family, Lin Dong is invited by Master Yan to come to Yan City with his sister Qing Tang, but unexpectedly he is involved in a storm

Seventeenth year of the Yuanwu of Zhao Dynasty. Immortal Master descends to break the 400-year tradition of successive reigns and is about to celebrate his 600th birthday. The emperor is furious because his voice overshadows that of the emperor and wants to eradicate him. Zhang Qian of the Department of Demons sent two divisions of soldiers to Jade Mountain. The first is for spying information. The second is to eliminate the master. The two teams have been at odds with each other and have accumulated a lot of conflicts.

In the 12th year of the Yuan Dynasty of the Great Zhao Dynasty, the demon ravages and confuses the sentient beings. In addition, when the natural disasters occur, the people are miserable. The Emperor Zhao Xu Mingzhen Moss commanded Zhang Qianqing's demon teaching, and the national teacher Mo Fan told Zhang Qian that the general rudder was in Zhangzhou.

The film tells that Yan Xian's master passed him a demon catcher before he died, but the demon catcher was stolen by the three cat demon. The stranger caught the "demon in the ear" inside the king. Yan Seventeen caught a rat demon who had stolen his money and treasure, and this rat demon named Rat Laibao was the real successor of the demon catcher.