
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.
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.
SpongeBob makes it his mission to become normal; SpongeBob wakes to find that everyone in Bikini Bottom is gone.
Patrick and SpongeBob learn to tie their shoes; Squidward is in charge of the Krusty Krab.