Candace and Vanessa's dry cleaning are switched, Doofenshmirtz tries to build his own private country while Perry is laid up from injuries, and Phineas and Ferb attempt to create a giant rainbow for Isabella. The accidental clothing swap symbolizes the fact that most of the episode reverses the usual tropes - this time around instead of Candace trying to bust Phineas and Ferb to Linda, Vanessa is trying to bust Doofenshmirtz and Norm to Charlene. Meanwhile, Phineas and Ferb build an -inator that inadvertently causes Doof's invention to disappear before Charlene can see it.
* ClothingSwitch: Candace and Vanessa.
* FacePalm: Doof does it two times; one, when Norm is hiding behind a pole, and two, when he reveals himself while playing hide and seek.