Donald Duck stumbles upon an ancient map in his Uncle Scrooge's library—a relic from King Garuzia that supposedly leads to legendary treasure from the Great Duck kingdom. Convinced he's found his ticket to fortune, Donald sets out on a globe-trotting adventure to gather clues and complete the map, though he soon discovers that the brutish Pete has caught wind of the treasure hunt and will stop at nothing to beat him to it. His quest takes him through exotic locales and perilous encounters, from battling supernatural enemies in Transylvania to exploring cursed Viking vessels, all while gathering pieces of the puzzle that point toward a final destination in the frozen South Pole. When Donald finally locates an ancient diary that holds the key to the treasure's location, Pete's interference forces a desperate rescue mission that tests whether Donald can outmaneuver his relentless rival and claim the prize for himself.