Detective Song Ruozhao touched an ancient mirror from the Tang Dynasty while chasing the murderer, and when he opened his eyes, he was caught in the bloody massacre of Anshi City. In order to save Zongzi from exposing her identity, she used modern criminal investigation technology to solve the case, and even incorporated mechanical principles into the crossbow machine to form a women's thunder team to tear apart the rebel iron formation. When the hero recorded in history trembles under her gun, the passage back to modern times opens when the lover is about to die - if history is used as a bet in exchange for his life, who is the real prey in this pursuit that spans thousands of years?