The Crazy Caustic Spray of the Contagious Cruelius Sneezer is the tenth season 2 episode of The Epic Tales of Captain Underpants.​


George and Harold goad Melvin into making a time machine to take a field trip to the real ancient Rome while Mr. Krupp makes an emperor power play out of delusion. Things go wrong when Cruelius Sneezer becomes a reality and Captain Underpants is required once again.


  • Melvin's future self makes a small speaking cameo in this episode and doesn't have a role.
  • Melvin is nice to Harold and George in this episode.
  • The dog-cat from The Bizarre Blitzkrieg of the Bothersome Butt-erflies, returns in Melvin's nightmare.
  • Cruelius Sneezer is based of one of the Roman leaders, Julius Caesar.
  • MORAL; not everything is as good as it’s cracked up to be.
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