Plankton creates a sauce that lowers the intelligence of whoever eats it. The fumes are sucked into an air vent, absorbed by a cloud, and rain on Bikini Bottom, turning everyone as stupid as Patrick. Sandy and Karen are the only ones not affected, and must re-educate the town.

When Mr. Krabs is too cheap to buy more garbage bags and creates a mess, he makes SpongeBob and Squidward drive a garbage truck and clean up trash around Bikini Bottom. However, Patrick is insistent on keeping his garbage, and the fight causes trash to splatter all over the Krusty Krab.

When Squidward’s house is infested by sea urchins, he has to stay at a hotel. However, SpongeBob and Patrick are also staying at the hotel, attending its jellyfishing convention.

SpongeBob buys Gary a red ball, but worries when Gary is obsessed with the ball and seems to care about it more than him.

SpongeBob and Patrick find Sandy’s box of sports equipment, but do not know how to play the sports. As revenge, Squidward teaches them incorrect and painful ways to play. Sandy eventually finds out, and beats Squidward at his own game.

Money Talks: Mr. Krabs makes a wish that he could talk to money. When his wish is magically granted, Mr. Krabs learns (to his horror) what all of his dollars, pennies and quarters have been longing for: they want Mr. Krabs to spend them.