Businessman murdered in his home, wife critically injured. Children suspected. Estranged sister Edie investigates but initial attempt fails.

Edie's attempts to find a witness to the murder place her in peril high on a mountainside, and she learns some information she doesn't like at all. Daniel is abducted by masked assailants at gunpoint.

Forty Bell nearly loses his life rescuing Daniel from a drug gang, and Edie's tentative closeness with her nephew is shattered when she makes a shocking discovery at a Bishopscourt sex party.

A violent invasion of Andrew McKenzie's memorial shakes up the community, bringing new suspects to light, and Edie learns things about her brother that she doesn't want to know.

When a gun is found at the high school, a new suspect is arrested, but Edie's investigation into Andrew's business partner leads her down a different pathway and leaves her fighting for her life.

Daniel places himself and Jaime in danger with an ill-advised statement to the media, and a murderer breaks into the McKenzie home. Forty rides into the jaws of terrible danger, and Olivia McKenzie wakes from her coma.

Matters accelerate towards a resolution as Forty barely escapes Zone 41 with his life, one of the children reveal a hidden side of their personality, and the killer reveals himself to Edie.

A killer has been found but Edie is not convinced that the full story has come to light. She reveals a secret and makes a genuinely shocking discovery, and is left with the most difficult decision of her life.