After a violent incident, Robin's job is threatened but she won't give up. She finds a boy who might hold clues to Tui's case, but will he talk?A violent incident raises questions about Robin's future with the local police, but she won't let go of the case. She locates a friend of Tui's who refuses to speak a word to anyone. He is accused of disrespect, but Robin believes there are deeper motives at play. His silence may hold a clue to Tui's disappearance and she's determined to earn his trust. Robin is also contacted by a pathologist who has investigated several cases for the local police. He tells Robin about additional evidence with potentially powerful implications, and she finds herself ever more committed to getting to the bottom of Tui's case. At the same time, she begins to exhume long-buried memories with Johnno. He hints at a tragic secret from their past that could threaten the future of their relationship and her work on the case.