Ash and Lana go Pokémon-fishing in a lagoon famous for a certain type of Pokémon. Meanwhile, Kiawe takes everyone else to his family's farm. Ash and Lana happen to meet a fisherman, who states he's been trying to find the mysterious lake Pokemon for several years. He supplies the duo with a boat, and they try to find said monster. Lana is determined to fish and battle this Pokemon.