The Brennans --- parents Finn and Bridget, and their sons, Jarrah and Toby --- have made a sea change, from chilly Hobart, Tasmania, to subtropical Murwillumbah, New South Wales. Feeling like foreigners in this land of sun and surf, they're still adjusting to work, school and life in a sprawling purple clapboard house, when tragedy strikes one morning. In the devastating aftermath, the questions fly. What really happened? And who's to blame? Determined to protect his family, Finn finds himself under the police and media spotlight. Guilty and enraged, Bridget spends nights hunting answers in the last place imaginable. Jarrah --- his innocence lost --- faces a sudden and frightening adulthood where nothing is certain.