While Endora throws a Halloween party, she and Uncle Arthur are still clashing over the house across the street, and Gladys is still dumbfounded.

Endora gives Darrin three wishes. First he wishes that Larry goes to Hawaii instead of him. Then Darrin has to meet Buffy, a model, for a business lunch and Endora thinks the worst. It really gets serious when Darrin and Buffy fly out to Boston and a snowstorm grounds all planes from flying out. So Darrin gives Buffy his hotel room and he stays at the airport. At home, a message comes for Darrin and Samantha calls his hotel room in Boston only to hear Buffy at the other end. When Darrin comes home, Samantha thinks that he had an affair with Buffy and threatens to leave him, thinking that he used his wishes on Buffy. Darrin straightens her out by saying that he still have two wishes left. On his second wish, he wishes that Endora will appear before him and Samantha apologizes to Darrin for not believing him.

Aunt Clara wants to go back to the age of Queen Victoria, but ends up bringing Queen Victoria to the twentieth century. Alarmed by the casual nature of modern behavior, Queen Victoria threatens to set some decrees. Upon discovering that Samantha and Clara are witches, Victoria is verbally abusive. An angered Aunt Clara remembers how to send Queen Victoria back to her own time.

Samantha insists that Endora zap away the new pony for Tabitha before Darrin gets home. Endora tells her not to worry, the pony IS Darrin. Once changed back, Darrin orders Endora out of the house.

At the office, Endora sends a ""live"" framed photo of her that Darrin cannot escape her ever changing expression. A client named Mr. Gregson wants to meet Darrin's mother-in-law, who must be a special woman for Darrin to keep her photo on his desk. The dinner goes well, particularly since Endora has become the queen of charm. After witnessing a tiff between the Tates over Larry's mother-in-law, Gregson suggests that Darrin should open his own ad firm. Larry doesn't like this one bit and refuses to speak to Darrin. It's up to Samantha to set things right between Larry and Darrin.

Larry wants Samantha to convince his new client, Mr. Baker, to update his firm. In order to do that, Samantha leads Baker to believe that the ghost of his Uncle Willie came back to tell him to do something about his company's image.