As the group arrive in Celadon City, the first thing they notice is the smell. Misty enters a perfume shop and tries out some of the perfume offered. Ash tries to stop her because he feels it is a waste of money. He is thrown out of the shop and goes to the Celadon gym. He is refused there because they won't let anyone in who doesn't like perfume. Jessie and James later break in to steal Pokémon. They are chased out as well. Jessie and James offer to help Ash get in the gym if he would untie them from the tree they were hanging from and he agrees. They dress him up as a girl named Ashley who likes perfume. The disguise gets him in far enough so that when he is found out, he has already reached the gym leader. They have a match in which Ash does well until Team Rocket burst in to blow up the place. They used Ash as a distraction to get the secret perfume formula. The gym bursts into flames. Squirtle and others help put out the flame. Gloom is trapped inside the burning gym and Ash runs in through the flames to save it. When the fire is put out and everything is normal again, Ash receives the Rainbow badge for his bravery during the fire.
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.