Young archaeologist Shen Tianyu accidentally discovered a note recording the secrets of an ancient tomb after his father died unexpectedly while exploring a mysterious tomb, and subsequently uncovered a thousand-year mystery. Following his father's clues, he embarked on a journey to find the "Yin Tomb", the tomb of the lost emperor. Unexpectedly, buried deep underground was not only a treasure, but also a shocking conspiracy between an ancient mysterious organization and a lost civilization.