Year four of the ""witch-com"" starts with a bang when Samantha is the chosen one to be the Queen of all Witches. After a series of happenings in the house, Darrin escapes to the safety and sanity of his favorite bar.

Endora babysits Tabitha, but has to leave for a party. She finds a perfect babysitter- in a toy that she brings to life! Of course, Tabitha copies Endora's spell and brings all of her toys to life. Big mistake!

To get in good graces with an Italian client, Darrin must learn how to speak Italian. Endora, anxious for Samantha to travel Europe again, gives Darrin a perfect Italian tongue. Her spell, however, is too strong, and ""Dino"" no longer understands English. His new clients begin to think that Darrin is mocking them, and Samantha interrupts Endora's bath and demands she remove the spell.

Endora is fed up. Samantha's loyalty to her marriage is keeping her from her responsibilities as Queen of the Witches. While Samantha is out, Endora calls Serena to impersonate Sam and make a shambles of their marriage. Darrin finally realizes that it is Serena, and plans on turning the tables--only the real Samantha has arrived home.

When Darrin makes Samantha return a coat, Endora puts a spell on him to turn him into a penny-pinching Scrooge. Darrin sees the error of his ways after a bombed-out dinner party with a cheap client, Mr. Bigelow.

Samantha malfunctions because she doesn't use her powers as often. Dr. Bombay has her float in the air for the time being. Darrin has a meeting with his former girlfriend Mary Jane, who happens to be his new client. He calls Samantha to tell her, but Endora says that she is flying. Of course, Darrin thinks that Samantha has turned into a fly to spy on his meeting!

Endora assists Darrin get his old college golf game back. Although Darrin is invigorated, it is not enough to out-golf a client, Mr. Baxter, who is a major golf pro. Larry, skittish McMann & Tate will lose an account, warns Darrin not to beat Baxter, but Samantha helps out Darrin when Baxter's exasperated wife wishes that he would lose, for just once.

This is another eventful Halloween. Despite Darrin's concern, Samantha reads Tabitha an every day mortal Halloween bedtimestory. This time Darrin was right! Tabitha materializes 3 goblins out of the pages of her book. On Halloween, the magical pranksters follow Tabitha and Samantha out for an evening of trick or treat, with mostly tricks. After Samantha finally realizes what Tabitha has done, she pops all the goblins back to home: only Glady's nephew has traded places with one of the goblins. They end up turning Glady's nephew into a goat, and Tabitha ends up returning the ghouls to their rightful place.

The Stephenes' are watching home movies, but encounter a problem when the sound is not in sync with the action. Aunt Clara tries to help out, but ends up making Samantha seem like she is in a badly-dubbed movie when her voice follows her lips off-screen. Phyllis is totally confused and calls Frank to come get her.

Darrin and Samantha are in Chicago to work on the Springer Pet Food account. Baby-sitter Aunt Clara panics when Tabitha brings one of her toys to life. Samantha pops home to check up just when Louise arrives at the Stephen's home. Major confusion ensues when Larry gets word that Samantha is at home, not in Chicago with Darrin. When Mr. Springer sees Sam & Tabitha outside McMann & Tate, he realizes that she was indeed the woman in Chicago with Darrin, and the problem is solved.......well, except Louise is sent to a psychiatrist. Samantha saves the day by introducing Louise to Serena.

Because of a dodo bird Tabitha materializes, Endora and Clara have their powers switched! Dr. Bombay finds this out and returns the witches to normal.

To get into the Thanksgiving spirit, Aunt Clara zaps the Stephens and Gladys, who just happened to be nosing around, to seventeenth century Salem. Darrin lights a fire with a out-of-place match and is charged for witchery. Samantha then defends him at the trial and Darrin is cleared. Then Aunt Clara brings them back and Gladys runs off to tell Abner about her fantastic trip, but at soon as she reaches her door, Samantha changes her costume.

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.

Darrin is planning to surprise Samantha with a rocking chair, but Endora thinks that he is fooling around with another woman. This woman, in fact, is the saleslady that Darrin makes the final payment to. To see what he is up to, Endora puts a spell on him causing his ears to grow when he tells a lie. The more Darrin lies about the surprise, the more his ears start growing. He finally tells her the truth: he bought her a rocking chair and wanted to surprise her. He hid it in the Kravitzes' garage for safe keeping.

Samantha hires an English maid named Elspeth, much to the dismay of her previous owner, Montdrake. He is so mad that he does horrible things to Darrin to get her back.

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

Samantha needs help painting her house, and Aunt Clara conjures up the most famous painter of all time, Leonardo da Vinci. Da Vinci is mad when he learns that his famous Mona Lisa painting will be used in Darrin's campaign to sell toothpaste. Samantha then gets him to create another best-selling idea.

Endora hires Rollo to get Samantha away from Darrin, but her plan backfires when Rollo creates a love potion for Samantha but Endora drinks it instead. Endora is set to marry a client of Darrin's, but at the altar, the potion wears off.

Remember Sheila Sommers from the pilot? Well, she's back and Larry wants Darrin to go with her to get her father's account with McMann and Tate. At a dinner party, Sheila is up to her usual tricks, and Samantha unleashes a few of her own.

Samantha wants to know what life would be like if she and Darrin had never met. Endora shows Samantha that Darrin would have married Sheila and become a part of her millionaire father's family. Darrin likes her, but he doesn't love her. On cue, Darrin meets Samantha and the rest is history.

Serena lands on the front page of the morning news, which lands Darrin in a lot of trouble with the Tates. Darrin tries to convince the Tates that the photo is Samantha's cousin Serena. But when Darrin makes matters worse by insulting her, she decides to teach him a lesson.

Tabitha brings out Prince Charming and Helen, Darrin's cousin, falls for him. Her fiance, Ralph, doesn't like this arrangement one bit, but Larry likes it and thinks that the prince will be perfect for TV commercials. To sway the prince away from Helen, Samantha pops in Sleeping Beauty.

Aunt Clara learns that Ocky has opened an old castle, which is the home of McTavish, a ghost who is scaring away visitors. Samantha suggests that McTavish find some other place to haunt, and he haunts her house! Then McTavish realizes that he is an excellent tourist attraction and decides to go back home.

A simple case of mistaken addresses is the issue for this episode. A flipped number in their home address creates confusion and artificial grass is delivered on their lawn. The real owner wants to know what happened to his artificial lawn and finds out that Darrin has it.

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.