Uncle Scrooge and the ducks go to Scotland to find the treasure hidden in the walls of the old McDuck castle, and there they encounter a "ghost" that is invisible except for the shadow cast by its skeleton. The "ghost" soon steals the treasure and traps the ducks on a balcony a hundred feet above the ground, but the nephews get down safely and find a secret entrance to the castle through an old graveyard.; Donald becomes a sheriff's deputy in Bullet Valley and is sent out to bring in a gang of rustlers. The rustlers are led by Blacksnake McQuirt, a tough gunman who poses as a legitimate rancher and uses a branding ray to change brands from as far as a mile away.; Donald, an aggressive butterfly collector, is hired by Sir Gnattbugg-Mothley to go to Africa and bring back an Almostus Extinctus, rarest of butterflies. In Africa, the ducks are sabotaged by Professor Angus McFiendly, who is also after the Almostus Extinctus, and Donald is forced to give him the butterfly when the nephews are captured by cannibals hired by McFiendly.; Donald must go swimming in Frozenbear Lake on Christmas Day or lose his home on a bet with Gladstone Gander.; Donald takes a job as a night watchman, guarding a million dollars in silk, but the nephews have to prevent him from falling asleep on the job.; Donald and the nephews are rival telegram messengers. Donald sends the nephews out with a phony telegram so that he can get the good jobs and big tips.; Donald stages a high-society garden party with a jungle motif, including nephews who have been hypnotized into thinking they're monkeys.; Professor Pulpheart Clabberhead, a child psychologist, talks Donald into letting the nephews do whatever they want.; Donald is the pilot of a round-trip rocketship to the moon, competing against Baron de Sleezy for a prize of a hundred thousand dollars.; Donald becomes a member of the Coast Guard, on guard against crafty jewel smugglers--who outwit Donald but not the nephews.; Donald and Gladstone brag about their wealth until Daisy asks them to contribute to her club.; When Donald forces the nephews to be his caddies, they trick him into believing he can hit a hole-in-one with every shot and this leads to a bet with Gladstone.; Donald goes searching for pearls to make Daisy a necklace for her birthday, but he finds ball bearings in a giant clam instead.; Donald rides to the hounds on Lord Tweeksdale's estate to prove--for Uncle Scrooge's benefit--that the member of the duck family are great sportsmen.; Donald takes the nephews birdwatching.; Donald refuses to believe that finding a horseshoe brings good luck.; Donald devises a system for guessing the number of beans in a jar.; Donald picks out a vacant lot where the nephews can play ball.; Donald pretends to be sick so that the nephews will have to cook.; Donald tests the authenticity of worm holes in an antique.