In the last long summer before high school, everything changes . . .
In tiny Miller's Flat, Mike is stuck at the caravan park helping his mum when he meets feisty, city girl Kirsty. Together they escape their boredom and create their own world on a remote beach. There, they invoke the power of Poseidon, God of the Sea. but Poseidon delivers more than they bargained for, and it will take all their courage and strength to find their way home again.