The return of Le Quack is a highlight for many viewers. In this segment, the recurring French con-artist mallard kidnaps Muriel by tricking her into a hot-air balloon.
It’s a fast-paced rescue mission. Courage’s desperation to save Muriel while Eustace remains largely indifferent (or actively unhelpful) provides the core tension. [S4E3] Le Quack Balloon/The Windmill Vandals
"Le Quack is easily my favorite recurring villain. His theme music and the way he constantly outsmarts everyone but Courage makes for great TV." The return of Le Quack is a highlight for many viewers
"The Windmill Vandals is such an underrated episode. The atmosphere of the ghosts approaching through the darkness really captures that 'Nowhere' feeling." Courage’s desperation to save Muriel while Eustace remains
Fans often discuss how these two episodes showcase the duality of the show: one being a character-driven caper and the other a supernatural thriller.
Overall, this pairing is considered a strong entry in the final season, balancing the show's signature weirdness with genuinely high stakes for the Bagge family.
This segment leans harder into the "folk horror" roots of the series. When the windmill on the farm stops turning, four ghostly, undead Vikings (the Vandals) appear to destroy the farmhouse.