Year four of the ""witch-com"" starts with a bang when Samantha is the chosen one to be the Queen of all Witches. After a series of happenings in the house, Darrin escapes to the safety and sanity of his favorite bar.

Phyllis breaks bad on Samantha's family, and Serena shuts her up by turning her into a cat! Miss Parsons finds Phyllis as a cat and decides to keep her. Meanwhile, Frank is looking for Phyllis and Samantha finds her at Miss Parsons' house with a whole bunch of other cats she has collected! She then finds cat Phyllis and gets Serena to change her back to a human.

Endora is at it again! This time, she changes Darrin into an old man and tries to hide him. Too late, the Tates spot Sam and old-man Darrin and she introduces him as Darrin's grandfather, Grover Stephens. Larry plays matchmaker when he brings his widowed aunt Millicent to woo Grandpa Stephens. To break up the date, Sam turns herself into an old woman who poses as Grover's wife! Samantha decides to stay an old woman as long as Darrin stays an old man, and Endora has no choice but to turn him back to normal.