Sally is determined to push ahead with the exhumation, and John forms alliances with Emily and Gray. Meanwhile, DCI Morgan and DS Jones wrestle with some key questions.

As Sally's legal challenge runs into trouble, her friendship with Arnaud takes a darker turn. With the court date approaching, Rose and Bobby come to a momentous decision.

A revelation threatens to ruin not only Sally's legal challenge, but the entire bedrock of her family life. Meanwhile, DCI Morgan closes in on his prime suspect.

Sally faces the wrath of an increasingly unhinged Arnaud. Elsewhere, Rose shocks Bobby by taking a huge risk, and DCI Morgan finally brings charges for the murder of Jack Wright.