When Donald Duck decides to join the Navy, he leaves his nephews, Huey, Dewey and Louie, in the care of his cantankerous Uncle Scrooge. While the initial meeting was less than pleasant, events soon have them, along with a newly hired nanny, her daughter and Scrooge's stupid but skilled pilot, on countless adventures as they go around the world looking for treasure, or defending Scrooge's assets from enemies like the Beagle Boys or Magica De Spell.