So let's see, Johnny has a genetically enhanced dog and some ultra-smart older twin sisters who like to perform various experiments and tests on him (and he never gets a piece of cake when he's done). You might have thought that over the course of the first four seasons of the series Johnny would have done everything he could possible do, but not so. No, Johnny is back for a whole new season of experimenting fun. Kind of makes you glad, doesn't it?
TV Network - Cartoon Network