Kensuke's kingdom

When Michael's parents lose their jobs, they buy a boat and decide to sail around the world with their son and their beloved dog. It's an ideal trip - until Michael is swept overboard. He's washed up on an island, where he struggles to survive. Then he discovers that he's not alone. His fellow-castaway, Kensuke, keeps his distance at first. But when Michael's life is threatened, he slowly lets the boy into his world. The two teach and learn from each other until, inevitably, they must part ways.