The story is set in Australia circa 1988. When archaeologist Carolyn Wells returns home to Sydney after several months away at a dig in Tunisia, she expects to be reunited with her lover, Detective Inspector Alex Graham. But she soon learns that Alex has been wounded in a hostage incident and is recuperating at a Royal Flying Doctor Service hospital at a place in the outback of New South Wales called Three Mile Cache. Carolyn decides to fly out there and surprise Alex with her arrival.
Surprises abound when she gets there. One of the doctors treating Alex has a rather intimate interpretation of a bedside manner. There are mysterious goings-on at a local homestead and Alex's injuries haven't stopped her from probing into the lives of the locals, much to their annoyance.
When Carolyn and Alex meet again, things don't quite work out as either of them would like. Can their relationship recover from the series of events in Three Mile Cache that threaten to keep them apart?