介绍:
Arthur finishes his science fair project just in time for the fair, but an over-excited Pal scatters Arthur's carefully laid out human heart. Arthur is so desperate to fix his broken heart, it's all he can talk about to his friends. Binky, 小主播：刘晶晶
the Brain, Francine, Muffy, and Buster are baffled as to who mystery girl is who has broken Arthur's heart, and head to Arthur's house to cheer him up. Will Arthur's heart be mended -- and in time for the science fair?
亚瑟按时完成了他的生物科学的项目，但被他们家的狗Pal在追逐中，搞坏了亚瑟的精心做好的人心脏模型。亚瑟非常伤心，所有他的朋友都误会是谁，哪个神秘女孩伤害了亚瑟的心。后来，亚瑟在朋友们的帮助下，修复了人工心脏。
