Buford has lost his goldfish, so Phineas and Ferb help him search for it.
Meanwhile, after accidentally saving a kitten, everyone thinks Dr. Doofenshmirtz is now on the side of good, to his annoyance.
* HeelFaceTurn: Everyone ''thinks'' Dr. D did this. He wants to clear up the misunderstanding.
* InelegantBlubbering: Buford does this while on the search.