Weird Science (1994)

S4E9 Slow Times at Farber High

Gary messes up once more, this time draining all the intelligence from the students at Farber High with a magical brain vacuum. The collective brainpower of his classmates coalesces into a massive orb with plans for world domination. Now, Gary must find a way to outsmart the combined cleverness of every student at Farber High to save the day.