Six-year old Lulu loves her Gramma. But when Gramma comes to take care of her and her puppy, Pearl, she makes lots of mistakes. Mischievous Lulu teases her and calls her Bad Gramma each time she does something wrong, like forget to put the chocolate chips in the chocolate chip cookie dough. But when Lulu can't find her blankie at night, there's a real crisis, because Gramma can't find it. Then, to Lulu, she really is a Bad Gramma. Gramma saves the day when she asks Pearl to find the blankie, and Pearl knows just where it is. All is well, and Lulu knows what a Good Gramma she has.