You will watch The Simpsons Season 18 Episode 4 – Treehouse of Horror XVII online for free episodes with high quality. Online episode guide, The Simpsons Season 18 Episode 4 – Treehouse of Horror XVII.Season 18’s annual trio of Halloween stories.
“Married To The Blob” – Homer consumes a mysterious green substance from a meteorite landing that turns him into a giant blob with an insatiable, cannibalistic appetite.
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