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.

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.

Darrin is turned into the most nicest person in the world by Endora and gets a tough client named Mrs. Sebastian to sign with McMann and Tate. When Mrs. Sebastian suspects that something is up, she then takes back her account, but Samantha changes her mind and she accepts Darrin.

Samantha gets through to a greedy miser Mr. Haskell when he doesn't contribute to the UNICEF fund. Samantha and Endora mess up Haskell's love life when they hex Lila to admit that she is in an affair with another man!

Samantha is not having a good time moonlighting and wants Mary to take her wings back. Mary then finds out that her costume is used as a marketing ploy for a Reducealator campaign set up by Darrin. She then wises up and takes her job back, and wins Darrin the Reducealator account.

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.