When Brianna Donahue was three years old, her mother mysteriously disappeared while farming in Merriwell Bay, Western Australia. Now she works the same land while almost single-handedly raising her two children, and when her son goes missing she is forced to face the fact her marriage has huge cracks in it. Meanwhile, over two thousand kilometres away in South Australia, Detective Dave Burrows sets off on an investigation that will impact Brianna's world and test her relationships with those she loves most.