Endora casts a truth spell on a gift from Darrin to Samantha so that any mortal within vicinity of it has to tell the truth. 

After drinking a "The Heavenly Himalayan" at a Chinese restaurant, Sam loses her powers and stripes breakout on her face.

When Sam makes some suggestions for Darrin's ad campaign, he rejects them thinking that they are the product of witchcraft.

When Tabitha is worried about taking an intelligence test, Endora casts a spell and turns her into a genius.

The Washingtons adjust to life in the twentieth century as they stay with the Stephens. Larry sees them both and decides that it is a great ad campaign for his new clients, the Whirlaway Washing Machine Company. George cannot tell a lie about the washer and, as a result, loses the account for Larry and Darrin. He does the same thing in the courtroom and his charges are dismissed. Then the Washingtons are finally send back to their own time.

While helping Tabitha with a school project, Esmerelda accidentally zaps up the real George Washington. When he wanders from the Stephens' home, he is arrested for public speaking without a permit.

During Tabitha's first day at school, she turns a bully into a frog.

Serena gives Larry Tate a "youth pill" that makes him younger and younger.

While Tabitha is taking beginning skating lessons Endora bewitches her skates turning into a championship skater.

Serena is stripped of her powers by the Contessa Pirhana, another witch, as Serena cavorted with one of the Contessa's harem of men. As such, Serena decides to try the mortal life and date a mortal she finds handsome and interesting. The person she chooses is wealthy Harrison Woolcott, a potential client of Darrin's.

Samantha feels a tremendous heaviness and fatigue and when Darrin tries to lift her she seems to weigh a ton. Dr. Bombay's diagnosis: she is gravity leaden because a witch's natural instinct is the exact opposite, namely flying, which she hasn't been doing because of Darrin's directive not to use witchcraft. Dr. Bombay's cure makes her weightless just before she has to participate in a charity bazaar.

When Esmeralda babysits for one of Darrin's clients, trouble ensues after she performs magic for Norton's son.

The Witches Council wants to test out Adam to see if he is a warlock or a mortal. If he is a mortal, he wilh have to be taken away from the Stephens' household. Maurice helps Adam by giving him powers so that he will not be taken away.

After Endora gives Darrin a gambling addiction, she makes sure his horse will lose the race. Sam convinces the horse to win.

Endora is incensed that Darrin has a bunch of photographs of bikini clad women in his briefcase. Samantha fully understands that Darrin often has to deal with beautiful models. Endora summons a witch named Ophelia to tempt Darren.

Endora causes trouble at McMann and Tate when she has a warlock join the firm. He casts a spell on Larry, making him like all of his ideas on a carpet account instead of Darrin's. It gets to a point that Darrin quits McMann and Tate, but finds out that this is all Endora's fault. 

After Tabitha zaps Hansel and Gretel out of their story, Samantha must enter it to go after the runaway Tabitha.

After Samantha loses her powers, Maurice visits and comes down with the same affliction.

Tabitha temporarily becomes a TV star when she pops into a children's show to reprimand two aggressive puppets.

When visiting a castle in England, Darrin is possessed by a ghost who wants to get closer to Samantha. After he is rejected as Darrin, he makes a pass at Louise Tate.

In Paris, Endora zaps up a fake Darrin to appease an irate Maurice who is angry as they did not visit him while in London. The real Darrin shows up and Maurice zaps him onto the top of the Eiffel Tower.

The Stephens are sightseeing in Rome, and Endora tries to test Darrin's loyalty by bringing the famous Venus statue to life. 

While in Pisa, Esmeralda corrects one of her former goof-ups by straightening the Leaning Tower of Pisa.

The Loch Ness monster is really one of Serena's old suiters. After Sam gets Serena to turn him back, he turns Serena into a mermaid.

Darrin must rescue Samantha before King Henry VIII adds her to his gallery of beheaded wives by competing in a wrestling match. 

While vacationing in England Samantha frees a trapped nobleman from a painting. The witch who trapped him punishes Sam by sending her back to the time of Henry the VIII. While Henry wants to make Sam his next queen, Darren must travel to the sixteenth century and rescue her.