Theo thinks there's nothing worse than being stuck on a Pacific cruise with his dad, new stepmum and annoying stepsister. But when he's thrown overboard during a storm and washes up on a desert island, he suddenly has much bigger problems. As Theo tackles castaway life - finding food, water and shelter - he discovers the island is full of mysteries: spooky noises, possible ghosts and the strangest birds he's ever seen. With survival getting tougher by the day and no rescue in sight, Theo is desperate to get back to his family. But to escape the island, he must first unlock its secrets - and reckon with the power of nature.