On their way to Ecruteak City, Ash and co. are caught in a rainstorm, but as luck would have it they would find a seemingly abandoned castle. There they meet Dr. Anna and her Pokémon medical team. Brock instantly falls head over heels for her and his Zubat falls for hers. Later Brock and Dr. Anna get trapped in a maze. How will they get out? And Can Ash and Misty do anything about this?
The Pokémon Dr. Anna has are used for some medical practices:
Mimi (Her Zubat) uses sound waves to help her examine her patient's internal health.
Machoke specializes in Chiropractic massages.
Spinarak can use it's webbing to make bandages.
Mareep can be used to power her muscle stimulator.
Two of Dr. Anna's male patients were voiced by Eric Stuart and Jimmy Zoppi respectively.