Scrooge's enemies reveal a secret history to prove that he is responsible for turning them evil, forcing Louie to defend his uncle against their prosecutor, Doofus Drake.
Della, Dewey and Huey recruit a showboating pilot to take them to an island full of monsters in search of a missing mystery, unaware that Don Karnage is hot on their tails.
Huey struggles to keep Fenton and Gandra’s top-secret experiment (and their relationship) hidden from the world. But, Mark Beaks is desperate for one last gizmo to steal.
A bitter feud between Scrooge and his sister, Matilda, spreads to the rest of the family as Phantom Blot attempts to steal a priceless artifact and destroy Castle McDuck once and for all.
Scrooge is forced to babysit young Donald and Della as they go on their first adventure to find a powerful artifact, unaware that Bradford is taking on this mission personally.
With F.O.W.L. at their heels, Scrooge tests out the Money Bin’s new security system on Louie and Della, while Beakley and Webby train the others for an enemy attack.
Scrooge and Goldie O’Gilt are turned into teenagers as they race Rockerduck to the Fountain of Youth, while the boys’ sibling rivalry uncovers danger at a spring break hotel.
The kids forego their usual trick-or-treat path and instead take on the most haunted house in Duckburg, while Launchpad confronts ghosts from the past.
Webby sets out to prove to a homesick Penumbra that Earth can be a lot of fun by riding Glomgold’s newest gift to Duckburg, the suspicious Flintferris Glomwheel.
Gyro, Fenton and Huey take a malfunctioning B.O.Y.D. back to the lab where he was created in Japan, but as Huey bonds with the robot boy, a secret from Gyro’s past threatens to destroy the city and Gizmoduck.
Louie plans a break-in at a high-class party hosted by Duckburg’s most popular tastemaker, Emma Glamour, so the Three Caballeros can play as Donald tries to get past the party’s no-nonsense planner, Daisy Duck.
The family joins a zen mermaid society to find a missing mystery, but Louie is convinced the seemingly innocent mermaids have a villainous agenda of their own.