Similarly to other Looney Tunes television specials of this era, the clips from classic cartoons are linked together with newly produced animation and redubbed dialogue when necessary.

Amidst their exchange, Bugs departs to extol the virtues of his purportedly superior doctor's brew, ultimately encountering Dr. Jekyll's transformative potion.

As Bugs unwittingly imbibes the elixir, he metamorphoses into a monstrous guise, prompting Witch Hazel's misconstrued assumption of a mere costume.

Additional Halloween festivities unfold with a series of fantastical encounters, including Daffy's transformation into an anomalous creature, and Sylvester's struggle to communicate a looming threat to Porky Pig amidst supernatural perils.

However, her retaliatory pursuit prompts a clever evasion by Bugs, who ingeniously utilizes an emergency cache of magical powder to ultimately transform the witch into a fellow bunny.