This season, for some reason, has fewer episodes than other seasons. The fourth season of fanon episodes was started by Phin68. The Season aired on January 4, 2020.
|Title Card||Production||Title||Release Date||
|"Bad Flower Power"||January 6, 2020|
|Demeter uses a copy of Triton's cure for "mortal diseases" to revive her dying plant, Plantzilla, but it grows into an evil plant.
|"Triton, SpongeBob, and the Worm"||January 6, 2020|
|The Alaskan Bull Worm returns and stars eating everything in Atlantis.
|"SpongeBob The Musical"||February 6, 2020|
|It's a special musical episode of SpongeBob that lasts for twenty two minutes! Watch SpongeBob go to work and save the Krabby Patty secret formula while singing, dancing and blowing bubbles! It's SpongeBob: The Musical! (not to be confused with the West End one)
|"K.I.S.S.I.N.G."||February 14, 2020|
|Plankton comes up with a plan to make SpongeBob, Squidward and Mr. Krabs fall in love so he can steal the secret formula! That's when he realises on tiny detail: they're all already in love!
|"Video Killed the High School Star"||February 14, 2020|
|Pearl gets into online dating, but every one of her dates turn out to be someone she already knows and hates!
|"A Normal Episode"||February 20, 2020|
|We see what things would be like if SpongeBob was like Squidward, Patrick was like SpongeBob, Squidward was like Gary and Gary was like Squidward. It's a totally normal Saturday in Bikini Bottom.
|"Get Rich 101"||February 20, 2020|
|Mr. Krabs wants more money so resorts to robbing the Bikini Bottom Bank.
|"Sea Language"||February 22, 2020|
|Plankton invents a language and everybody starts speaking it.
|"Mermaid Man and Barnacle Boy VIII"||February 25, 2020|
|There's a new reboot series of Mermaid Man and Barnacle Boy comic books but waiting in line is a tough task for SpongeBob, Patrick and Mr. Krabs.
|"Sorry, I've Got No Sponge"||May 11, 2020|
|SpongBob goes missing.|
|"Clash of Amphitrite"||October 20, 2020|
|Queen Amphitrite wants revenge on her husband, King Neptune, after he refused to obey her command of banishing their son, and it's causing natural disasters in Bikini Bottom!
|"A Job for Jervis"||October 31, 2020|
|Jervis gets a job at The Krusty Krab and starts to theorise the Krabby Patty Secret Formula.|