Joanna wakes in hospital to discover she has been in a car crash and Alistair is dead. We flash back to Australia, where Joanna and Alistair are told the investigation is being wound down. They are free to return home to Scotland. Joanna begs Alistair to tell her where he has buried their son and eventually he takes her to a deserted beach and points to a large tree. Joanna falls to the ground in grief. The couple return home to Scotland where they attempt to rebuild their lives. Joanna returns to her job as a primary teacher but struggles to cope. Alistair meanwhile loses his job with the party. His notoriety is considered too damaging. The publicist, Jean-Louise offers Alistair a position with a charitable foundation for parents who have lost their children. Joanna is appalled. The couple grow further and further apart. Chloe and Elizabeth visit from Australia. Chloe tactlessly organises a celebration for Noah's first birthday. It's too much for Joanna and she flees. Joanna reads a ...