Goo Goo Gas - Le Big Switch.Goo Goo Gas: Plankton's latest scheme sees him invent a gas that causes people to turn into babies. Plankton hijacks the Krusty Krab and turns all the customers into babies. Plankton then gets the secret formula, but SpongeBob accidentally overpowers the gas canister by bashing it, causing it to explode. The gas turns Plankton into a microscopic baby.
Le Big Switch: SpongeBob and an executive chef trade jobs in a cultural exchange program. SpongeBob does not start out well at the new restaurant as the owner demands him to cook other than Krabby Patties. The owner continues to yell at him until he tastes a patty, realizing how good it tastes. The owner begins to sell Krabby Patties, which all the rich clientele enjoy. The exchange program ends and SpongeBob is eager to return to the Krusty Krab. SpongeBob takes the Krabby Patties back and all the customers follow him.