Samantha still hasn't found the courage to tell Darrin Tabitha is a witch. When the baby, using her witchcraft, turns the living room into a mess, Aunt Clara is sure her own failing powers are responsible. Larry and Louise Tate arrive to help celebrate the Stephens' anniversary. As Tabitha practices her witchcraft in her crib, things start moving in the living room downstairs. Following a toy pony which floats upstairs into the baby's crib, Darrin finally realizes his daughter is a witch, but tries to hide his shock from Samantha. Darrin and Samantha have their hands full trying to keep the Tates from discovering the truth about Tabitha.