Donald Duck reluctantly takes his nephews Huey, Dewey and Louie to the home of their reclusive great-uncle Scrooge McDuck. Enthralled by their once legendary great-uncle and the wonder of McDuck Manor, the triplets and their newfound fierce friend Webby learn of long-kept family secrets and unleash totems from Scrooge's epic past, sending the family on an adventure of a lifetime to the Lost City of Atlantis.

The nephews take Webby to Funso's Fun Zone and have a dangerous run-in with the Beagle Boys.

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 and Webby's disagreement over the existence of a mythic species leads the kids to explore an eerie abandoned subway tunnel, while Mrs. Beakley grows suspicious of Lena.

Donald competes with his cousin Gladstone Gander to impress Louie at a mysterious resort in Macaw, while Scrooge tries to lure the kids away from the resort’s endless distractions.

Huey competes with Dewey for a coveted internship with Duckburg's newest tech billionaire, Mark Beaks, while Scrooge and Glomgold team up to take this new competitor down.

In a lost pyramid, Louie interprets a pharaoh's prophecy to his advantage, forcing Scrooge and Launchpad to convince a group of living mummies to rescue him.

Scrooge and Huey are determined to be the first to set foot atop an impossible summit, but the snow-capped mountain holds a treacherous secret that tests both their commitment and survival.

Donald is dragged into a feud between Scrooge and Zeus, while Dewey and Webby search for an artifact that may provide the truth about Dewey’s mother.

Brilliant young scientist Fenton Crackshell-Cabrera is recruited by Launchpad who is feeling menaced by tech genius Mark Beaks’ newest invention.

Dewey’s natural golf abilities challenge Scrooge’s ego while, a seemingly innocent, mystical golf course leads the group into trouble.

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

The kids and Launchpad work together to capture a mystical money shark while Scrooge attempts to better his public image with a televised interview.

Scrooge reteams with his conniving ex-partner and old flame, Goldie O’ Gilt, to find a long-lost golden lagoon, but Glomgold has other plans.

When Dewey invents a holiday that allows the triplets to be only children for a day, each realizes they need their brothers more than they thought.

Webby learns how Scrooge and Mrs. Beakley first met while she helps Scrooge rescue her granny from the clutches of rival spy Black Heron.

As Fenton figures out how to be a hero, Mark Beaks offers to hire Gizmoduck and help him defend all of Duckburg.

Lena’s loyalties are tested when Magica forces her to lead Webby on a raid to a facility full of Scrooge’s most dangerous artifacts to find his #1 Dime.

Feeling ignored, Dewey finds a new family: a band of singing and dancing pirates looking to rob Scrooge blind.

On a family trip to Scrooge’s ancestral castle, Dewey tries to hide the truth about his mom as his brothers search for family secrets.

Stuck on a precarious peak, the kids secretly search the plane for the final clue about Della’s mysterious disappearance.

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.