Summary: In a breathtaking but remote mountain town in South Island, New Zealand, a twelve year-old girl named Tui is discovered to be pregnant. Local police enlist help from Detective Robin Griffin, a child protection specialist who has recently returned to the area to care for her mother.

Summary: As Tui's disappearance remains unsolved, fear for her survival increases, while her father solicits help, Robin has a run-in with the girl's half-brother and a perverted local.

Summary: Robin makes a breakthrough in her investigation, but Al warns that her own dark past is colouring her judgement.

Summary: A violent indiscretion sees Robin thrown off the case but she cannot let go. Her passionate affair with Johnno, Tui's half-brother, intensifies and complicates.

Summary: Robin is back on the case, whilst Matt gathers troops to hunt his daughter down. Tui's friends trek deep into the mountains to celebrate her birthday, with tragic consequences.

Summary: With fresh intelligence on where Tui’s hiding, Matt launches a full-scale search party. Before Robin can intervene, tragedy strikes.

Summary: Tui is about to give birth. Matt reveals a secret that almost destroys Robin. The investigation reaches its shocking conclusion.