In the turbulent Republic of China era, railway surveyor Chu Yang is ordered to investigate the terrain of Fengmen Village. Amidst layered mysteries and man-made traps, he races to uncover the truth—gradually exposing long-buried secrets and a sinister conspiracy over mineral-rich deposits. Faced with greed and danger, he clings to reason and protects his comrades, ultimately halting catastrophe before unchecked avarice unleashes greater devastation.