Recap
A young boy, Martin, is trapped in bed with an illness and dreams of playing outside with his dog, Dog. He goes to the window and watches as Dog runs home and up to Martin's room. The boy combs through his dog's hair and removes all the leaves and branches caught in it, viewing each one as a relic of Dog's travels. Martin's mother comes in and warns that Dog is always digging, and dug a hole in their neighbor Mr. Tarkin's garden. She considers all the things that Dog has brought home are junk, but Martin insists that it's the only way he can experience anything of the outside world. He shows his mother a tag he's made that asks anyone finding it to follow Dog home and keep Martin company. He insists that Dog can do anything and sends it out to fetch...
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Analysis
Changes from the short story:
* Miss Haight's role is much expanded in the episode.
* The episode's ending, despite the subject matter, is much more upbeat and affirming than the short story.