We welcome a new addition to the Stephens' family: baby Tabitha. Endora wants to see how she looks grown-up but Darrin is dead set against it. At the same time, Serena, Samantha's mischievous look-alike cousin, comes to town to visit Samantha and Darrin thinks that Serena is the grown-up Tabitha!

As a gift, Gladys and Abner give Tabitha a share of stock which rises rapidly, making the Stephens richer by the minute. Darrin thinks that Tabitha may have her powers already. Gladys and Abner think that the baby is a hot tip for stock advice and puts the bank on whatever Tabitha inadvertently points to. When the Kravitzes lose their money, Darrin is certain that Tabitha has her powers.

Darrin Stephens another Rocky Balboa? Thanks to Samantha, Darrin knocks out a fighter named Joe Kovack. Then Kovack wants to have a make-believe fight in which he pretends to beat Darrin, but Darrin beats him again thanks to Samantha. Darrin then runs into heavyweight champ Tommy Carter and accidentally gets into a scuffle. Darrin is lost without Sam, but Carter ends up knocking himself out by tripping on the ground.