As the game opens, Huey runs to his uncle Scrooge McDuck with a torn piece of paper, which is a piece of a treasure map drawn by Scrooge's father, Fergus McDuck. Inspired to discover the hidden treasure left by Fergus, Scrooge starts an expedition to find the missing pieces, unaware that his archenemy Flintheart Glomgold is also after the lost treasure of McDuck.
Scrooge travels to Niagara Falls, a pirate ship in the Bermuda Triangle, Mu, Egypt and Scotland. Each area has its own unique treasure that is guarded by a boss. After all five main stages are cleared, Webby is kidnapped by Glomgold and held for ransom on the pirate ship in the Bermuda Triangle. Scrooge arrives and gives Glomgold the treasures, only to discover that this "Glomgold" is actually a shapeshifting robot called the D-1000 programmed to destroy him. After the D-1000 is defeated, Glomgold sinks the ship and tries to take Scrooge and the treasures with it.
Scrooge and Webby escape the ship, but the treasures go down with the vessel. Despite the loss, Scrooge admits that at least he and his family are safe and that their friendship is what truly matters. The treasures are recovered by Launchpad, cheering everybody up. If the lost treasure of McDuck was found, Scrooge reveals that he hid it from Glomgold by putting it under his hat. However, if the player has no money left at all, a bad ending plays in which Glomgold finds the lost treasure and is named the greatest adventurer in the world, which infuriates Scrooge.
- Genre: Platformer
- Platform: Game Boy, NES
