S03E07
7.9
The Day the Earth Stood Stupid
7.9(45)February 18, 2001
Earth is invaded by super-intelligent flying brains, who sap the Earth's populace of their intelligence. Leela is taken to Nibbler's home planet Eternia, where the Nibblonians explain that only one human is immune to the brains' powers - Fry.
Based on 45 votes