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.

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.