Phineas and Ferb

In Phineas and Ferb, two creative stepbrothers come up with crazy things during each day to pass the time before school starts in the fall. Of course, in real life, all of them would be impossible to do in one day. But as the cool kids they are, Phineas and Ferb are able to bring their ideas to life in just a few hours.  Phineas' older sister Candace, sees most of what they do as dangerous, and in most episodes, tries her best to catch them in the middle of their projects. However, her efforts are mostly pointless because the boys' inventions miraculously disappear before either parent can see them before coming home or wherever they are. Most times, they disappear because of their pet; Perry the Platypus, who, only to the viewers is a secret agent. To the family, he's a normal pet, but when nobody is looking, he puts on his detective hat, sneaks into his secret office under the house using many secret doors and tunnels, and gets his assignments from the Major. Perry's enemy is Dr. Doofenshmirtz, an evil, but goofy scientist who comes up with various tasks of his own to try to rule the “tri-state area”. Doofenshmirtz's plans are as crazy as the boys.  But unlike, Phineas and Ferb, Dr.’s efforts are usually unsuccessful because Perry is able to defeat the scientist.  The cycle then starts again the following day in the summer.