Synopsis

In a practice battle against Ash's Grovyle, Brock’s Mudkip undergoes evolution, transforming into a Marshtomp. The newly evolved Pokémon inadvertently strikes a Flaaffy belonging to a young woman, but Brock is able to mend the Pokémon’s injuries at a nearby drugstore. There, both Brock and Marshtomp find themselves vying for the affections of the girl, and her Flaaffy. Unbeknownst to them, however, the girl and her Flaaffy harbor feelings for someone else entirely.