
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 Snow Yellow is deemed the Squarest of them all, the evil Queen Karen seeks to claim the title for herself by any means necessary.

SpongeBob can't drive, but he learns one does not need a license to operate a self-driving car; Patrick thinks he is an old man, so SpongeBob tries to remind him how much fun being a child can be.

Plankton creates a gas that turns everyone at the Krusty Krab into babies; SpongeBob trades places with a French chef from a fancy restaurant.

SpongeBob, Patrick and Squidward buy Mr. Krabs a new mattress; Plankton sues Mr. Krabs after falling at the Krusty Krab.