Kelly, Hannah and Darbie are on the hunt for a special ingredient in order to determine Chuck's whereabouts. The ingredient only blooms once a year - on Halloween. The Girls have to find a way to go back to last year's Halloween and get it without running into their past selves.
After re-growing the magical garden, Kelly's Grandma appears...from 1975! Becky has cooked a recipe that inadvertently alters the course of history and everything is turned topsy-turvy. Kelly, Hannah and Darbie have to travel back in time to 1975 to set things straight.
