It’s report card day and when Mary doesn’t have the best grades in class, it throws everyone into turmoil. It turns out that she needs glasses but it takes almost a full episode to figure that out. The kids and middle-aged students in Miss Beadle’s class make fun of her, by calling her by the super creative name “four-eyes.” Mary gets back at everyone by OWNING yet another history test but she has to confess yet another complex web of lies to Pa. Walnut Grove is saved now that Mary’s high grades are back.