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  3. S01E12 (Captain Underpants and the Sickening Fumes of Smartsy Fartsy)
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  • United States of America
  • July 13, 2018

The Epic Tales of Captain Underpants

Captain Underpants and the Sickening Fumes of Smartsy Fartsy

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Season 1 Episode 12

To steal Mr. Krupp's rule book from a tightly locked safe, the boys cook up a super-intelligent gas cloud who winds up turning against them.

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