Captain Morgan Pentland flies for Border Watch, patrolling the vast Australian coastline. With steely determination, she's fought hard to reach this point in her career, but her private life is a shambles. Will she ever break the tragic patterns of her childhood? Customs agent Rafe Daniels is working with her undercover. Morgan knows Rafe doesn't like her. What she doesn't know is that he has her under surveillance as a suspected terrorist. Critical information about their operations is leaking and she's the main suspect. Carl Wiseman, an elite policeman and Morgan's ex, is still on the scene, but is he pursuing Morgan to regain her love or for something more sinister? Morgan and Rafe will be forced to work together if they are to discover what is really going on, and stop a terrorist attack on Australian soil. But first, they will have to acknowledge the attraction that is growing between them.