
A square yellow sponge named SpongeBob SquarePants lives in a pineapple with his pet snail, Gary, in the city of Bikini Bottom on the floor of the Pacific Ocean. He works as a fry cook at the Krusty Krab. During his time off, SpongeBob has a knack for attracting trouble with his starfish best friend, Patrick. Arrogant octopus Squidward Tentacles, SpongeBob's neighbor, dislikes SpongeBob because of his childlike behavior.
Plankton needs help stealing the formula, so he hires an intern who knows more about Mr. Krabs than anyone; Patrick goes into a destructive fit whenever he hears a bell, so his friends help him in their own ways.
SpongeBob must go to extreme lengths when Gary refuses to go to the vet; SpongeBob gets stuck while working out.
Patrick becomes smart after he gets hit on the head; Sandy's experiment causes SpongeBob and Squidward to meld into one body.
When the circus comes to town and steals his customers away, Mr. Krabs tries to sabotage the show; Sandy spends the day solving everyone's issues, only to return home to her own monster of a problem.