While visiting her dying mother in New Zealand, Detective Robin Griffin begins investigating the disappearance of Tui Mitcham, a twelve-year-old pregnant girl from the small town of Laketop.

Season two begins four years on from the explosive ending of season one. Detective Robin Griffin has returned to Sydney attempting to rebuild her life. When the unidentified body of an Asian girl washes up onto Sydney’s Bondi Beach, the case seems hopeless, until detective Robin Griffin discovers that China Girl didn’t die alone.