Lunch Lady and the Breakfast Bunch are on a school field trip to a famous art museum. But while Lunch Lady is busy taking in all the culture, the kids have caught onto something strange—some of the artwork looks suspiciously fake! Now Dee, Hector, and Terrence are determined to get to the bottom of this conspiracy, but Lunch Lady is too awed to catch on. Will she snap out of it and come to the rescue? Or will the Breakfast Bunch have to handle this operation alone?