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

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.

Squidward receives an invitation to a gallery opening and scrambles to find a friend to take with him; while trying to order a special sandwich, Patrick gets swept up in the fast-paced world of business.

Mr. Krabs must pretend that he is a pirate when his grandfather comes to visit; SpongeBob discovers that Squidward is a member of a secret society and decides that he wants to join.