
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.

SpongeBob volunteers to baby-sit; SpongeBob and Patrick volunteer as guards at the museum, while Squidward attempts to hang his painting unnoticed.

Patrick becomes smart after he gets hit on the head; Sandy's experiment causes SpongeBob and Squidward to meld into one body.

Patrick gets his license and wins a car; a document reveals that Patrick is next in line to become a king.

SpongeBob sends away for a free toy; SpongeBob comes down with a case of contagious sea fungus.