After escaping prison during a monster attack, convict Wu Chuan must navigate a city overrun by prehistoric creatures and lead a desperate fight to save his trapped mother and stop an ancient beast from destroying the city.

In the 23rd year of the Wanli era during the Ming Dynasty, border general Zhan Congwen is framed for colluding with Japanese pirates by treacherous court officials, leading to the execution of his entire family. His son, Zhan Hong, escapes and flees to Qinchuan Town, where he meets and falls in love with Xiahou Ying. However, he soon discovers that her father, Xiahou Batian, was involved in his father’s case. As the truth slowly unravels, Zhan Hong ultimately succeeds in his vengeance and is appointed as the Commander of the Imperial Guards (Jinyiwei), continuing to purge corruption from the court.