When Scrooge becomes convinced that there are valuable minerals on the moon (due to the diamond cuff links he got from his last trip there), he and the nephews go up there and encounter a group of treasure-hoarding aliens.
Gosalyn: So take it easy for a while, Dad! You could use a vacation!
Drake: Vacation?! Layoff is a better word for it! Without a steady stream of stupendous stunts, the newspapers will forget all about Darkwing Duck! Gosalyn:[holding up a newspaper with the headline "Dunkling Duke stumbles onto major crime ring"] Yeah! Like they already remember who you are!