Upon finding out of the Valley of the Golden Suns, Scrooge begins an expedition to find the treasure therein, starting with finding the map that leads to it. First, he must get one half of the map from High Golden Sun Priest Joaquin Slowly, but in order to reach Slowly’s mountaintop fortress, he must enlist Gyro Gearloose to construct a special aircraft, and Launchpad McQuack to fly it.