
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.

When stray snails begin appearing around Bikini Bottom, SpongeBob decides to care for them himself; Patrick enters a Krabby Patty eating competition in order to defend Bikini Bottom's honor.

SpongeBob turns in a litterbug to the police; SpongeBob and Patrick buy invisible spray from the local prank shop.

When SpongeBob mistakes an escaped convict for his driving instructor, it is the new teacher who learns a lesson; Mr. Krabs sends SpongeBob in search of a missing toy, and SpongeBob finds himself lost in the lost-and-found.

Plankton disguises himself as SpongeBob's grandmother; Mr. Krabs uses Gary to find spare change.