In the Australian town of Upson Downs, ten-year-old Annie and Runt, her stray dog, attempt to win the Agility Course Championship at the Krumpets Dog Show in London in order to save their family's farm from drought and misery.

Clare is an addict in recovery when her mother’s sudden death turns her carefully measured world upside down. Returning to her hometown, she reconnects with teenage sweetheart Jerry. He’s the one Clare could never stop thinking about. It’s been fifteen years since a tragic accident tore them apart. Now they have a second chance at happiness. But as their love returns, so does the ghosts of the past, threatening Clare’s sobriety and triggering a powerful demonic presence determined to control her.

Sarah, 12, lives on a boat with her parents, who research whale sharks. Her only friend is a whale shark named Jack, who Sarah rescued when he was a pup. But following a tragic accident, mum and Sarah move to the coastal town of Exmouth. Desperate to return to her old life, Sarah pegs all her hopes on Jack, certain that when his migration brings him back to Exmouth, mum will take her out on the boat again. But Jack fails to return, so Sarah embarks on a risky mission to find him.