Phineas and Ferb: She's the Mayor/The Lemonade Stand

Phineas and Ferb's chameleon grows to the size of a dinosaur when it's inadvertently zapped by a "gigantinator" ray. When it runs off into the streets of Danville, Phineas and Ferb give chase and its camouflaging abilities make it impossible for Candace to bust them. Meanwhile, Dr. Doofenshmirtz takes guitar lessons from Jeremy to learn a musical sequence that will summon the ancient pyramid-building aliens so that he can become the Overlord of the Tri-state area./ Phineas and Ferb put on a rodeo complete with a herd of robotic bulls. Meanwhile, Candace and Stacy are upset because Stacy's mom, Dr. Hirano, does not think they are responsible enough to go to a concert on their own. Candace plans on proving her wrong, but her drive to bust her brothers keeps interfering. Across town, Dr. Doofenshmirtz also tries to prove his worth by competing in an "-inator" building contest against the other town villains.