The story tells the story of a mysterious old hermit (Christopher Lloyd), known as the "Crazy Captain", and a young orphan. The old hermit has a strange lifestyle. He rides a bicycle every day to pick flowers, look at the sea, and sweep tombs. Life seems normal, but it reveals an unacceptable temperament. Even his own daughter was unable to establish good communication with him. The old hermit resolutely refused everyone's help and insisted on living alone, making him a mystery in the village. In the village, there are a group of bullies who are naughty and naughty, and the old hermit cannot stand their behavior. The old hermit agrees to help a young orphan to prevent him from being bullied by local bullies. However, he made a condition that the orphan must help him build a boat.