The class homework assignment is to write a story, and everyone seems to be writing about something interesting...except Arthur. Francine's story is funny, so Arthur adds some humour. Buster writes science fiction, so Arthur decides his story should take place on the moon. The Brain says research is important, so Arthur heads to the library. But by the time he's finished, Arthur's story is a mess! Arthur learns that maybe it's best to write about something that he cares about - like his dog, Pal!