This story takes place during the events in the episode Leap of Faith

Granny Smith decides to drink the entire bottle of Flim and Flam's miracle tonic only to find out that it might have actually worked! The hands of time were turned back eighty years and she is now a much a younger mare. She then recruits Zecora to help her see if the tonic does as advertised but at the same time Granny also may have unintentionally discovered the true reason behind her youthful appearance. However, it will be up to her and Zecora to keep this secret from the Flim and Flam brothers from exploiting it.