Meanwhile, the forensic team processes a newly recovered item from the water, which could break the case wide open—but chain-of-custody issues threaten to ruin the prosecution. The episode ends with Lisa making a morally questionable decision to protect someone close to her, setting up major conflicts for the remaining episodes.

picks up immediately after the discovery of evidence linking a key suspect to the murder of the young woman found in the bay. Detective Sergeant Lisa Armstrong (Morven Christie) is under increasing pressure from both her superiors and the victim’s family.

The episode features powerhouse performances as the primary cast faces their lowest points: