This episode has four storylines within it:
Arthur almost lost his dad to the fire and now he's afraid something might happen to him when he leaves the house.
Binky sees the fire when it happened and gets terrified, but won't admit it to anyone.
Buster becomes good friends with Mr. Morris, the school janitor, who was injured during the fire.
Sue Ellen is upset that her diary was burnt up in the fire and Muffy tries to cheer her up.