For as long as Scrooge McDuck has been a successful tycoon, he's had to deal with swindlers, burglars, and every other kind of chiseler who wants to get their hands on his hard-earned fortune. And leading the pack of scheming miscreants that hound his every step are the infamous Beagle Boys - most of whom are now cooling their heels in Duckburg's jail. As he leads his nephews Huey, Dewey, and Louie into the city, Uncle Scrooge tells them about an early encounter he had with the Boys' criminal matriarch, Ma Beagle - and how that has lead directly to their new mission: infiltrating the prison that the gang now calls home!