
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.

Mr. Krabs and Plankton must learn to get along after ending up shipwrecked on an island; SpongeBob and Squidina try to start their very own Captain Quasar fan club after being kicked out of Bubble Bass's.

The long-lost episode of "Mermaid Man" is finally showing on TV, but SpongeBob may not make it home in time to watch; Karen gets a computer virus, and it's up to SpongeBob to get it out of her.

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

The friends become unstoppable after Sandy teaches them karate; before long, the entire town learns the martial art and joins the action.