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?