Overview: Jessica James succeeds Cassie Stuart as DCI, after two interim leaders. The detectives are on a mission to uncover the mystery behind an unsolved murder that occurred 39 years ago. Beneath the ground of a demolished house, the bones of the victim are found. With this evidence, the modern police team open a case to unearth the history that has remained buried for decades. Four main suspects emerge, and as their dark past is unraveled, the truth behind the events of the crime are finally revealed.