Sora is a lively young boy eager to explore the world alongside his friends, Riku and Kairi. The trio is diligently working on finishing a raft that will enable them to depart their island, but one day, a mysterious force causes Sora to acquire a special weapon called the Keyblade. He battles some odd monsters and is transported to a strange town. Meanwhile, Donald and Goofy leave their castle to search for the king and the chosen one who holds the "key" to saving the world. Sora is attacked again by creatures known as Heartless but is assisted by an old man named Cid and a warrior named Leon. He eventually reunites with Donald and Goofy, and they join forces to search for his friends and the King.