Synopsis

The planet is under siege, not by armies or ships, but by vast, intelligent entities that soar through the skies. These beings drain the minds of humanity, leaving a trail of vacant intellect in their wake. Leela is spirited away to Eternia, the home world of the Nibblonians. There, the Nibblonians reveal a startling truth: only one human possesses an immunity to the flying brains' insidious influence – Fry.