
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.

Squidward gets SpongeBob fired; Sandy and SpongeBob encounter a ferocious worm.

At night school, SpongeBob and Patrick dive into a series of classes on wildly different subjects; Plankton hires Bubble Bass at the Chum Bucket and realizes he can utilize him to get his hands on a Krabby Patty.

Plankton invents a machine enabling him to switch lives with Mr. Krabs; SpongeBob volunteers for lifeguard duty.

The place where Plankton usually dumps his rotten chum is too full, so he tricks SpongeBob into hiding it around the city; SpongeBob befriends a small storm cloud but has to protect it from a crazed weatherman.