Grieving the loss of her husband, the rail journey across the Nullarbor was to be a time of healing for Jeannie and her daughter Jaz. But it was not to be. Chris Bales, an old flame from her troubled, violent past which Jeannie thought she had buried forever, is on the train.

It is soon obvious that they both have secrets. Secrets which could tear their world apart.

And who is the mysterious Professor that Chris seems to be shadowing? Why is the Professor so interested in Jaz? And what dark plans are Chris and the Professor mixed up in - plans that seem to threaten the security of the whole nation?