Louie accidentally spends Scrooge’s Number One Dime and turns to mad inventor Gyro Gearloose for help to get it back, while Dewey and Webby become entangled in a conspiracy.

Huey races against Violet in a challenge to be named Senior Junior Woodchuck, while Scrooge and the family search for a secret Woodchuck treasure.

Dewey tries to prove himself by exploring a frozen fortress in search of a money tree seed, but Glomgold has kidnapped Scrooge in order to find it first.

Magica De Spell is close to exacting revenge on Scrooge, so the family races against time to plan a dangerous rescue mission to save Scrooge and the city.

When Scrooge unexpectedly disappears during his birthday party, Huey, Dewey and Louie find themselves hosting a mystery party where everyone is a suspect.