
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 falls asleep on the bus and ends up in a town full of Bikini Bottom doppelgängers; after Squidward loses his memory, he adopts a new tough guy persona.

Gary is given a set of limbs to keep up with SpongeBob, but soon makes his owner look sluggish; Plankton practices ruling the world by shrinking himself and declaring himself king of SpongeBob's aquarium.

Mr. Krabs' customers abandon him when SpongeBob starts cooking at home; when Plankton gets kicked out of the house, SpongeBob must teach him how to win his computer wife back.

SpongeBob builds a pool in his backyard, and Squidward tries to resist taking a dip; Mr. Krabs must reckon with the Goobfather after he adds patty whips to the menu.