Season 1 Episode 13: "Potion Mystery / Sick Day"
Episode 13
Written by: Taneka Stotts / Dave Horwitz
Storyboard: Andy Kelly, Oriol Vidal
Synopsis: A mysterious stranger has been refilling the potion fridge in Sugarcube Corner and Twilight Sparkle won't rest until she finds out their true identity. / When Pinkie Pie takes a sick day, her friends learn that running Sugarcube Corner is difficult!
Other air date: Saturday, December 19, 2020 (Discovery Family)