Final Chapter of the Extraordinary Records of the Civil Investigation Bureau.

Summary

A team from the Civil Investigation Bureau arrives at an iron mine site with a collapsed tunnel. Sun De Sheng and Che Qian Zi discuss their past and current situation while investigating the mysterious disappearance of around a hundred people. The local leader seems nervous and emphasizes the importance of expensive imported equipment. Gao Liang orders the site to be explored, and Ouyang Pian Zuo throws a grenade into the smoking black hole before he and Hao Wen Ming jump down to investigate, creating tension and uncertainty about what they might discover underground.

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