Catherine and Matthew Parker are trying to adjust to their new life in the remote Australian desert town of Nathgari. They are pleasant but keep to themselves, unwilling to get close to anyone. But their lives are flung into crisis when they discover their two teenage kids, Tommy and Lily, have mysteriously disappeared just before a massive dust storm hits. With temperatures rising and the chances of survival plummeting with each passing day, Catherine and Matthew find themselves pushed to the brink as they struggle to survive the mystery of their children';;s fate..