Episode #03 - Ash Catches a Pokemon!
Ash catches Caterpie easily, but Misty is disgusted by bugs. But Caterpie really likes Misty, but Caterpie keeps on following Misty. Soon, Ash, Pikachu, and his newly captured Caterpie went on without Misty, but she kept on following them, saying that it's the quickest way through the forest. At night, Pikachu was talking to Caterpie. In the next day, Ash captured another Pokemon, Pidgeotto. Team Rocket arrived, and tried to capture Pikachu. Pikachu was unable to fight since Koffing squirted sludge into its eyes, and Pidgeotto was defeated. Amazingly, Caterpie beat them with a string shot, and evolved into Metapod.