chunk: The first clue comes as soon as Glomgold has left, as Donald picks up an Incan vase that was knocked over during the bragging match. They find a metal plaque baked inside, providing a map to a temple of Manco Capac in the Andes mountains. Unfortunately, Glomgold is eavesdropping.
  Arriving at a village near Cuzco, Scrooge hires a plane to fly them to its location. The pilot of the plane turns out to be Glomgold, who relieves them of the plaque at gunpoint and then parachutes out. Scrooge tries to regain control of the plane and, in a comic episode, inadvertently rips out the belly of the plane while flying too low, dumping his nephews onto the valley floor, still in their seats. As the plane flies off, Glomgold approaches and informs the ducks that Scrooge has frightened away the porters he hired, so they will have to do.