With Huey’s and Webby’s help, Fenton woos a punk-rock scientist, Gandra Dee, only to uncover her dangerous plans for Gizmoduck.

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

The kids pair off to find the missing pieces of a mystical sword hidden throughout a marketplace, unless F.O.W.L. gets to them first.

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.

The future of adventuring hangs in the balance as the Duck family uncovers earth-shattering secrets in a final standoff with F.O.W.L.