Moonvasion!.As the Moonlanders launch their invasion, Scrooge gathers allies for a counterattack. However, it fails and Lunaris reveals his plan to make the Earth revolve around the Moon using a planetary engine. Elsewhere, Della flies the kids to safety, disguising it as a recruitment drive, but they are attacked and crash on an island; where they find Donald. Della tries to sway the others from leaving until Louie helps her see that it is okay to have bad experiences, as there will be good ones...