52 episodesFirst aired 18 July 2009
This season features SpongeBob's entire modeling career, Squidward's whole public television career, and Mrs. Puff's complete Krusty Krab career. Plus, you'll get a hilarious whodunit, a song you won't easily forget, a slimy love story, the entire multi-chapter special "Legends of Bikini Bottom," and oceans more!
E1Jul 200911m
Squidward stars in his own television show.
E2Jul 200912m
Squidward tries to sabotage SpongeBob's dancing audition.
E3Jul 200911m
Pearl goes through her growth spout, and Mr. Krabs needs to find a way to feed her.
E4Jul 200911m
SpongeBob gets stuck in his wringer.
E5Jul 200911m
Plankton poses as Sandy in order to steal the Krabby Patty formula.
E6Jul 200911m
Plankton explores SpongeBob's brain, in an attempt to steal the formula.
E7Jul 200911m
Plankton's latest scheme sees him invent a gas that causes people to turn into babies. Plankton hijacks the Krusty Krab and turns all the customers into babies. Plankton then gets the secret formula, but SpongeBob accidentally overpowers the gas canister by bashing it, causing it to explode. The gas turns Plankton into a microscopic baby.
E8Oct 200911m
The Flying Dutchman turns SpongeBob and Patrick into ghosts.
E9Nov 200952m
During a Krusty Krab anniversary celebration, SpongeBob, Patrick, Squidward, and Mr. Krabs accidentally get locked in the freezer.
E10Nov 200911m
SpongeBob believes he is let go from the Krusty Krab, so he finds a new job as a commercial actor.
E11Nov 200911m
Mr. Krabs and Plankton start selling greasy foods at their respective restaurants.
E12Jan 201011m
SpongeBob gets Gary a new playmate, who is vicious and mean.
E13Jan 201011m
Squidward gets caught littering and is sentenced to community service.
E14Feb 201011m
Gary falls in love with a snail named Mary.
E15Feb 201011m
SpongeBob and the rest of the Bikini Bottomites travel to Texas to try to save Sandy from a rodeo.
E16Feb 201016m
SpongeBob and Patrick accidentally change past events with Mermaid Man's time machine.
E17Feb 20109m
SpongeBob and Patrick watch a lost episode of The Adventures of Mermaid Man and Barnacle Boy.
E18Mar 201011m
Squidward bets that SpongeBob cannot go 24 hours without crying.
E19Mar 201011m
To pay off the damage she causes, Mrs. Puff works with SpongeBob at the Krusty Krab for free.
E20Mar 201011m
While sharing a locker with SpongeBob, Squidward finds a sacred world for clarinets only.
E21Mar 201011m
Mr. Krabs discovers that Plankton is afraid of whales, and uses his daughter Pearl to scare him.
E22Mar 201012m
Squidward executes his play at the Krusty Krab.
E23Apr 201024m
Jellyfish Fields is threatened by the construction of a highway built by Plankton.
E24Jun 201012m
Squidward gets to live in the world of his dreams, thanks to SpongeBob and Patrick.
E25Jul 201024m
King Neptune will not celebrate his birthday until SpongeBob and Patrick find his son, Triton.
E26Jul 201012m
Plankton pretends to be SpongeBob's grandmother.
E27Jul 201011m
Mr. Krabs uses Gary's coin-attracting abilities to become rich.
E28Jul 201012m
To avoid irritating Squidward, SpongeBob and Patrick dig a tunnel under their houses, much to Squidward's annoyance.
E29Jul 201012m
SpongeBob teaches Patrick karate, causing mayhem in Bikini Bottom.
E30Aug 201012m
SpongeBob and Patrick take a quiz on each other, which threatens their friendship.
E31Aug 201011m
SpongeBob and Patrick's game of hide-and-seek goes downhill after SpongeBob can't find Patrick anywhere.
E32Sept 201011m
SpongeBob and Patrick fight over a Krusty Krab-licensed toy.
E33Sept 201011m
Mr. Krabs is nominated for being the cheapest crab alive.
E34Sept 201011m
SpongeBob, Patrick, and Squidward get locked inside a time capsule.
E35Sept 201011m
Plankton impersonates Gary to try and steal the formula.
E36Oct 201011m
Squidward erects a statue of Mr. Krabs to try and attract customers.
E37Oct 201011m
Large sea whelks invade Bikini Bottom.
E38Oct 201011m
SpongeBob tries to bring the Krabby Patty back after Mr. Krabs removes them in exchange for hot dogs.
E39Oct 201012m
SpongeBob and Patrick find a lost ship, which Mr. Krabs uses for financial gain.
E40Nov 201022m
When cooking up a new batch of Krabby Patties, Mr. Krabs accidentally sends the formula away to the other side of the ocean, and sends SpongeBob and Patrick to fetch it.
E41Nov 201011m
Gary orders SpongeBob a product that helps him say no to anyone that needs SpongeBob's help.
E42Nov 201011m
SpongeBob becomes addicted to a song and cannot stop singing it.
E43Jan 201112m
Squidward becomes friends with his new neighbor.
E44Jan 201112m
Patrick's older sister Sam comes to visit him.
E45Jan 201111m
A volcanic eruption brings an ancient warrior to Bikini Bottom with dire predictions.
E46Jan 201111m
SpongeBob and Patrick seek out a legendary drain that once destroyed Bikini Bottom.
E47Jan 201112m
Patrick befriends a monster.
E48Jan 201112m
SpongeBob and his pals get trapped in the Bikini Bottom Triangle.
E49Jan 201111m
SpongeBob and Patrick are held prisoners by a backward gang.
E50Feb 201111m
Squidward gets ready to go out on a date and SpongeBob assists him with a "practice date."
E51Feb 201112m
Pearl and SpongeBob become stuck inside the Tunnel of Glove.
E52Feb 201112m
Sandy makes a teleporter, which Plankton tries to use to steal the formula.
