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.

As the 1969-1970 season begins, we are greeted by an all-new Darrin Stephens. Tabitha is jealous of the new baby and decides to run away in the storybook of ""Jack and the Beanstalk"". Phyllis sees Jack and is very confused about what is going on. Samantha finds out that Tabitha twitched herself into the storybook and goes in to get her back. She finds Tabitha shrinking the story's giant and messing up the entire story. Samantha tells Tabitha to put everything right back where she found it and brings her home.

Esmerelda brings up the real Santa Claus and cannot get him back to the North Pole. So Samantha blinks up his elves and sleigh and reindeer, much to the horror of Gladys, who instantly reports all that she sees to Abner, who does not listen to her.

The Stephens come home, only to have Esmerelda blink Samantha back to Salem- circa 1600's! Darrin has to go back in time and bring Samantha, who has no memory of who he is, back home. He has to place a coin on Samantha's head and have her say an incantation so she can remember again. He tries to get her attention and ends up getting accused of witchery! Samantha puts two and two together and goes along with the incantation.

As the final season begins, Samantha and Darrin take another vacation- all around Europe. Their vacation begins in the Tower of London where they are taking a tour. As they are touring, Samantha gets a call from one of the paintings- a nobleman on horseback. It seems that an evil witch had placed a curse on the nobleman, trapping him into a painting for a thousand years. The witch and the noble were destined to be married during Henry VIII's reign, forgetting that he was already married, the reason why he was placed in the painting. Being a nice person, Samantha lets him out. The moment he is released, the evil witch Malvina the Terrible appears. As punishment for breaking the curse, Malvina sends Samantha back to Henry VIII's time period. Once there, Samantha forgets who she is or why she is there. She comes across a group of instrument players and joins them in entertaining the infamous king, who falls for her. Darrin gets Endora to help him find Sam and save her with a kiss so she c

Darrin finds out that if Samantha marries Henry VIII, she will indeed be beheaded. Darrin tries to get Samantha away from Henry, but that proves to be very hard because she doesn't know who he is. Darrin gets thrown in the dungeon, but Endora saves him. At a party that Henry VIII is giving, Endora talks to Sam about giving up the king and going with Darrin. Henry VIII threatens to behead Darrin, but Endora suggests that they have a wrestling match. With Darrin in pain, Sam kisses him and gets back her memory. They all return home to the present, and Endora releases the nobleman for good.