After a short job search, Sabrina is hired as a barista at the local coffee house. However, her decision to work on Halloween is not popular with her aunts, and their ominous prediction that Sabrina cannot escape from Halloween proves true.

In order to impress Josh, Sabrina begins using oil of old age, which makes her more mature. However, she does not use it sparingly, and it soon makes her turn older and older, while Hilda's magic clock produces Marie and Pierre Curie.