Samantha gets a mean, miserly manager named Mr. Mortimer to change his thoughts about Christmas and gets him to really think about others.

The use of magic powers comes to a head between Darrin and Samantha when they get caught in the rain with a flat tire. This results in Samantha threatening to take Tabitha and leave Darrin, but they make up eventually.

Once upon a time, Endora made a deal with another witch Carlotta that Samantha will marry her son Juke, but Samantha hasn't lived up to her part of the deal. Now Carlotta and Juke are back and Carlotta will stop at nothing to give Juke what he wants. She makes Darrin disappear and never brings him back until Samantha agrees to marry Juke. Samantha tells Juke to finally stand up to his mother and tell her off.

Endora turns Darrin into the most self-centered, conceited person on earth. He thinks that this will make him lose an account with a new client, but Samantha saves the day when she tells the client that they should zero in on the youth market.

As a joke, Uncle Arthur switches Samantha and Darrin's voices, and they try to keep a depressed Louise and Larry from finding out.

Tabitha changes an ape into a handsome man named Harry who is instantly discovered as model potential. Harry gets bored of the whole situation, and Samantha tells him to act like himself, a mad ape.

The Witches Council takes away Samantha's powers when she refuses to break up with Darrin. Uncle Arthur and Serena help out Samantha and, as a result, loses their powers as well. After a hellacious day in the mortal working world, Serena and Uncle Arthur decide that they are better off with their powers. Samantha goes to the Witches Council and tells them they are in the wrong for their ignorance. Then Samantha, Serena, and Uncle Arthur get their powers back.

Samantha and Darrin have a flashback. Darrin has to go to Japan to do business with a client, but cannot leave Samantha's side when her baby is due. Endora breaks Darrin into two people: the fun Darrin and the business Darrin, with strange and hilarious results.

Phyllis catches Samantha using her magic powers and doesn't really know what to think. So, after six years, Samantha finally tells Phyllis that she is a witch and gives her a demonstation of her powers. Phyllis tells Frank about Samantha, and she tries to show Frank, but her powers have been taken away! Because of all this, Phyllis commits herself to a nursing home, convinced that she is a lunatic.

To give Darrin more ambition, Endora puts a spell on him giving him the push and verve that he needs. He takes it a bit too far when he takes control over an account and he and Larry was working on together. Darrin then has no time for Samantha or the children because of this spell and Samantha gets through to him by telling him that he is under a spell and to undo the damage he caused.

Samantha goes away for a 10,000-zap checkup and Serena takes over for her at home. All trouble ensues when she weasels her way into Darrin's life when he is trying to impress another seroius client. Samantha comes home to witness Serena acting up and straightens things out. All is well, until one of Tabitha's toys, a troll, comes to life and starts embarrassing Darrin in front of his prospective client!