Teamed with his nephews Huey, Dewey, and Louie, and using the partial map from the library, Donald begins his search in Duckburg, with the trail being directed to an Aztec pyramid in Mexico. Outside the pyramid, he is directed by a "sweet seniorita" to obtain a "hero key" from an explorer back in Duckburg to open the pyramid. Inside the pyramid, Donald meets Goofy, who gives him a strange note and a plunger to help him reach higher places, and tells him that Gyro Gearloose is looking for him back in Duckburg. Travelling across the rooftops of Duckburg to meet Gyro, Donald is given Gyro's latest invention, bubblegum ammo that can break through walls. The last location on the partial map is Count Dracula's castle in Transylvania, where Donald encounters a ghost who tells him that the Count carries the real treasure map.