In 1933, a mysterious ghost train rolls into the outskirts of Changsha, bringing with it visions from antiquity. Zhang Qishan leads the Nine Gates in an investigation, only to discover that this is just the tip of the iceberg. At the same time, Zhang Qiling, bound by his family's mission, and Jie Yuhua, the mysterious disciple of Er Yuehong, embark on this expedition as well. One is taciturn, the other meticulous. Deep in the mines, on the brink of strange transformations, they find themselves increasingly entangled by the pull of fate. In the ancient ruins of Changbai Mountain, they uncover the secret of a meteorite that fell a thousand years ago, along with the ancient power hidden within it. As their expedition goes deeper, strange phenomena erupt throughout the mines, and eerie mists and unknown creatures threaten everyone's lives. As Zhang Qiling and Jie Yuhua explore, they gradually develop a remarkable understanding. Their gazes meet in the dark mine tunnels, and they support each other in moments of danger. Their feelings slowly grow amid the trials of fate, and become clearer through the twists of destiny. But this expedition is about more than treasure hunting: it is a battle against an ancient power, and a contest with fate itself.