"The Valley of the Departed Spirit" explores the resting place of the celebrated Genghis Khan.

A murder case leads to the "keepers of the golden coffin warehouse", and the legendary golden coffin is said to be the true sarcophagus of Genghis Khan... In order to find clues about the murder case and to uncover the location of the mysterious tomb of Genghis Khan, Detective Captain Lu Junhang, his former classmate Greer, Mongol Yuan scholar Han Binyang, and others set out on a journey. However, an unknown conspiracy is quietly creeping up on them...