Andrew and his little sister, Lily, live with their parents in Texas. Since their grandparents reside nearby, they are always happy to visit them and learn new things about the world-especially from wise Pappa Rayson. The siblings usually get along, but one day, they start arguing. Pappa Rayson decides it's time to teach his grandchildren the lesson of the "ugly bug." He explains that the ugly bug of selfishness is invisible, but when he bites, he makes brothers and sisters fight. But that nasty bug also does something else: he makes them look ugly. Horrified by the thought of being ugly,...