After Burmy evolved into Mothim, Ash and co continue through the Eterna Forest where, along the way, they meet Gardenia, an overenthusiastic fan of Grass-type Pokémon. Ash declares a battle with her and she accepts. Will Ash win against this Grass Geek, and could she be the only one?
Brock: "You don't wanna mess with those guys."
Ash: "They're Team Rocket."
Dawn: "And those guys are the bad guys."
Gardenia: "That can't be true!"
Ash, Dawn, Brock and Cheryl: "Huh?"
Jessie, James and Meowth: "Huh?"
Gardenia: "There's no way! A Grass-type Pokémon trainer can never ever be all that bad."
There's a fan-service moment where Gardenia has no undershirt, but only for just a moment.