They are hired for a kid's birthday party. A fancy woman, Ms. Mildred, asks them if they are her caterers. Mr. Krabs says that they are her caterers. It ends up being pandemonium. It starts when the birthday kid from the party keeps on following Mr. Krabs, yelling "I want my birthday cake!" Then, SpongeBob makes the Krabby Patty fancy and Patrick eats it. Patrick soon starts eating everyone's patties. Then, Squidward sees a clarinet player and takes over, and starts playing off-key. Meanwhile, Mr. Krabs is trying to return the jewels that SpongeBob used to make the Krabby Patties fancy. He finds a room with a giant water bed, as the birthday kid is jumping on it. Mr. Krabs pops it while trying to get him off. The water splatters everywhere, wrecking the building.