On the way to the Grand Festival at Lake Valor, Ash and friends arrive in a small town and run into a young boy who left his Magby at what was apparently a fake Daycare Center. As a result, it was stolen, so Ash and friends decide to help. After they begin their search for Magby, they encounter a woman who introduces herself as Bertha, and who also seems to know how to find Magby. While Ash and Dawn don't see it themselves, Brock realizes who Bertha is. What is Bertha's secret?
A young boy named Ash Ketchum embarks on a journey to become a "Pokemon Master" with his first Pokemon, Pikachu. Joining him on his travels are Brock, a girl-obsessed Rock Pokemon Trainer, and Misty, a tomboyish Water Pokemon Trainer who may have a crush on him. Ash and Co. end up traveling through various regions, including Kanto, the Orange Islands, and Johto, and then enter the Pokemon League competitions there.
Along the way, they run into many confrontations with Jessie, James, and Meowth, a trio of Pokemon thieves who are apart of an evil organization called "Team Rocket". But every time Team Rocket try to do their evil deeds, they fail thanks to Ash and his Pokemon.