"Superdoo!" is the twentieth episode of DuckTales.
Doofus is frustrated that he's always slow and doesn't do things as well as the other Junior Woodchucks. Launchpad tries to encourage Doofus to keep doing his best but Doofus is still disappointed. Things only change when he finds a "donut" that gives him powers - the donut is actually a power source from outer space that two alien robbers had accidentally dropped on Earth. Once he wears the "donut," Doofus notices that he can do things quickly and efficiently. All of the other Woodchucks and Launchpad are amazed at Doofus' improvement, but then the other Woodchucks start envying him for being so good. Doofus feels sad until he notices trouble, which causes him to decide to become a superhero named Superdoo.
The other Woodchucks wonder who Superdoo is. Huey, Dewey, and Louie believe that something suspicious is going on, and eventually discover the reason behind Doofus' improvement; and it makes them more mad at him than ever.
Doofus begins feeling disappointed, but is able to make it up by catching a wolf that is about to attack the others. After that, the other Woodchucks express appreciation for Doofus again.
- This is the second episode of the series, in which Scrooge does not appear.
- DuckTales: Volume 1