I Knew That Was Gonna Happen / Sacajawea
I Knew That Was Gonna Happen
Season 2, Episode 12
Vital statistics
Air date 2016
Written by Unknown
Directed by Unknown
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Ruff Guyz / George Crum The Perfect Show Again / Aristophane

I Knew That Was Gonna Happen / Sacajawea is the twenty fourth episode of The Mr. Peabody & Sherman Show.


During Family Fun Night, Nostradamus arrives to the apartment and predicts doomsday, which causes a panic between the gang and they start to try to do whatever they want; Mr. Peabody and Sherman must help Sacajawea guide Lewis and Clark to new lands in a hilarious race.


  • The race Mr. Peabody and Sherman compete in spoofs Hanna-Barbera's Wacky Races.
  • The characters' apocalyptic outfits were a reference to the movie Mad Max.