After receiving a distressing call from an informant, Federal Agents Aaron Falk and Carmen Cooper head deep into the Giralang Ranges to investigate the whereabouts of their corporate whistle-blower Alice after she mysteriously disappears on a company hiking retreat. The four women who were recovered from the bush each seem to be hiding something about their traumatic experience. As Falk and Cooper close in on the case, they uncover worrying details about the connections between these women and begin to fear for the safety of their missing informant as a storm threatens to halt the search.