On a remote island, a suspected Nanyue site is discovered, and historian Gu Lin invites survival expert Wu Hen to help the archaeological team secure artifacts as a typhoon approaches. Unexpectedly, they uncover a cave far older than Lu Jia's era, leading them on an adventure to unravel an ancient mystery.

A gifted teenage detective is thrust into a string of doll-themed murders that shake his city. When his sister is kidnapped by the prime suspect, he races against time to solve the case but fails to save her. Three years later, similar murders resurface, forcing him to unravel a deeper conspiracy and uncover the truth behind the chilling crimes.