Tabitha loses her first tooth and is visited by the Good Fairy, who is an old friend of Samantha's. Mary, the Good Fairy, has a cold and Samantha gives her some brandy to make her feel good- a little too good! When Mary is too drunk to perform her nightly duties, Samantha steps in and takes her place....

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.