Huey decides to throw a birthday party for Scrooge, despite everyone warning him that Scrooge hates celebrating his birthday. When Scrooge goes missing and the guests turn out to be his worst enemies, Huey decides to solve the mystery, unaware that the ghost of Scrooge's faithful butler, the long deceased Duckworth, is involved.
Scrooge and Glomgold face off in the "Duckburg Millionaires' Club Golf Invitational" in the Scottish Highlands, assisted by Huey, Dewey, Louie, Launchpad and Webby. The game is however hijacked by the spirits of ancient druids and turns lethal, with petrifying mists and a couple of kelpies attempting to have them drowned.
After the family falls apart, Magica preys on a vulnerable Scrooge to finally acquire his lucky dime.
Darkwing gains an unlikely sidekick as he uncovers a dark conspiracy tied to the Missing Mysteries and one of Scrooge's employees.
As Darkwing, Gosalyn, and Launchpad fight a city full of supervillains, the boys unwittingly team with nefarious Bradford to rescue Scrooge.
The family raid FOWL Headquarters, only to find mysterious clones that point to a larger FOWL plot against them.
The family attempt a rescue mission, splitting up for a final confrontation with FOWL High Command. Meanwhile, Webby's search for answers uncovers an earth-shattering secret.
It's the final standoff with F.O.W.L. as Bradford's evil scheme is finally revealed, and the future of adventure hangs in the balance.