Dialga Zone

Ash, Misty and Brock arrive at Mt. Moon to find Team Rocket damaging the local wildlife. Then, the gang help saves the Moon Stone. Also, Brock catches a Zubat.

Ash and Misty finally reach Pewter City and meet a man who sells rocks. He brings them to the Pokémon Center and Ash heals his Pokémon. Ash is ready to challenge the Pewter City Gym Leader, Brock, for his first Badge, but loses the battle. The man he met earlier takes Ash and Pikachu to a watermill to make Pikachu stronger. Then, Ash battles Brock again. Pikachu Thunderbolts the whole field. When Ash is about to lose again, Brock stops the battle. Then, a fire broke out and water came down. Ash was going to defeat Brock when Brock's siblings stop him. Ash leaves the Gym but Brock catches up to him and gives Ash the Boulder Badge. The mysterious man from earlier turns out to be Brock's father and takes over the Gym for Brock. Brock decides to join Ash on his journey.

Ash and Misty are now wandering through Viridian Forest. A Samurai challenges Ash to a battle, and it turns out to be Metapod vs. Metapod. After a short time, a swarm of Beedrill attacks, and Ash's Metapod is taken by them. Can Ash get his Pokémon back from them or will it be doomed to live its life without Ash? Also, Ash's Metapod evolves into a beautiful Butterfree.

Ash, Pikachu and Misty have entered the Viridian Forest. Ash has spotted a Caterpie and thrown a Pokéball at it. Capturing it, Ash is overjoyed at his first catch. Misty, however, is scared of bugs and screams every time it comes near her. Meanwhile, Team Rocket is following them, ready for a fresh attempt at capturing Pikachu. Ash decides to capture another Pokémon, and manages to get a Pidgeotto. Can he, Misty, and his Pokémon fend off Team Rocket again?

Finally arriving in Viridian City, Ash is cornered by Officer Jenny who asks why he is carrying Pikachu instead of having it in a Pokéball. He explains that Pikachu doesn�t like Pokéballs and shows her his Pokédex proving that he is one of the Pallet Town Trainers. Jenny takes Ash to the Pokémon Center where Nurse Joy begins treatment on the injured Pikachu. Before Pikachu�s treatment finishes, however, the Center is attacked by two members of Team Rocket.

Ash Ketchum is finally 10 years old, old enough to become a Pokemon Trainer. He wakes up late, and arrives to Professor Oak's lab late, and all the Pokemon are gone! Ash has no choice but to take a naughty Pikachu. Pikachu won't listen or go inside its Poké Ball, so Ash must drag it along (literally). After many failed attempts at capturing some Pokemon, Ash throws a rock and it hits a Spearow. The Spearow gets angry and the entire flock starts chasing Ash and Pikachu! Ash, with no Pokemon that will listen to him, must escape from the raging Spearow. Can they escape and will Ash ever earn Pikachu's trust?