As a police team begin work on the five-year-old cold case of a teenage girl's murder, they inadvertently inspire the killer to strike again.

The team exhume the first victim to find clues with new DNA techniques. When Boyd thinks he is getting closer, he finds he is facing one smokescreen after another.

Contains violence. When Detective Superintendent Boyd encounters a woman unable to accept the explanation of her father's death, he takes on the case.

Contains violence. New evidence points to suicide but, when Boyd and the team exhume Perry Coleman’s body, DNA tests reveal some disturbing facts that call this into question.

Contains violence and very strong language. Renovations at a Catholic church reveal a skull buried within the concrete for over 20 years, bringing the team into contact with the church’s community as they investigate.

Contains violence and very strong language. The case drives Boyd to despair as it opens old wounds, whilst the rest of the team learns that the skeleton and a priest at the church may be related.