Scrooge is on the horns of a dilemma: Marry the free-spending heiress he's suddenly infatuated with or stay single and win a bet he made back in his Klondike days.
The Beagle Boys are put in a work-release program at a local office supply store. But when one dates a co-worker, he finds that she only went out with him in order to get him to help her pull off a crime.
Scrooge becomes convinced that a biblical-style flood is coming and begins building an ark to preserve his money. This inspires a business rival to try to ace Scrooge out of a deal by prematurely putting him out to sea.
The maiden flight of Scrooge's space shuttle to his tourist resort on the moon is plagued by a series of thefts of possessions of the wealthy passengers and Donald is the chief suspect.