When two girls disappear in the Tasmanian wilds 15 years apart, Dr Anna Macy finds herself linked to both cases.

Anna must confront the events of her past and the truth of what is happening in Kettering forest.

With Chloe's phone found crushed in the forest, the police mount a search. The tension between the Greenies and loggers intensifies.

Anna tries to leave Kettering after Dutch reveals the truth of her relationship with Gillian, raising suspicions about her actions 15 years ago. She visits her mother for answers, but finds her in a vegetative state.

At the hospital, Anna discovers the blood test for Kade is missing and is unsettled to find strange activist Jens there. Dutch accuses Roy of being corrupt and hiding secrets that led to Anna being sent away.

Anna finds her mother emerging from a fugue up at Mother Sullivan's House. Wendy s blood type has changed with dire consequences. Fergus reports Dutch over the drugs, but is stunned when the Commissioner covers.

Kettering is in crisis toxic water is coming from the ridge and the mill has been sold. A fingerprint from 15 years ago links a missing local to Gillian's disappearance. Dutch finds a bloody weapon in Anna's car.

Anna is convinced she knows what happened to Gillian 15 years ago. The town farewells a local while another life hangs in the balance. Anna faces the shocking truth of what happened the night of The Kettering Incident.