Candace spends each day trying to show her what Phineas and Ferb created to get her to punish them (or as Candace puts it to “bust” them.) But Phineas and Ferb’s pet platypus Perry is actually a spy secretly working for a group called OWCA (Organization Without a Cool Acronym) known as Perry the Platypus or Agent P who spends every day fighting the evil Dr. Doofenshmirtz. And every day Perry’s battle with Doofenshmirtz leads to him accidentally destroying whatever Phineas and Ferb built just before Candace shows it to her mother Linda so Linda sees nothing and doesn’t believe Candace who ends up looking crazy.