Nickelodeon announced this season on August 18, 2015.[2] A total of 20 episodes were ordered after the initial order of seven. It was originally 13.[3]
Starting with "Space Ca-Dad", the show's animation made a transition from traditional animation to Adobe Flash animation.
Timmy is shocked when Jorgen informs him that he has to share his fairies with his new neighbor named Chloe Carmichael, due to overwhelming demand, fairies taking on better paying jobs in the fancy candle industry and fairy godparent shortage. Chaos soon ensues when Timmy tries to find a way not to share Cosmo and Wanda, and Chloe tries to use her magic for good by wishing everyone in Dimmsdale would share everything.
154a
2a
"Whittle Me This!"
John McIntyre
Ellen Byron, Bob Colleary, Ray DeLaurentis & Lissa Kapstrom
Chloe wishes that she and Timmy would go to Catman's party, but when they get there, Catman believes that Chloe is his sidekick Catgirl and that Timmy has been kidnapped by the Whittler, who in reality is Cosmo.
154b
2b
"Mayor May Not"
Ken Bruce
Ellen Byron, Bob Colleary, Ray DeLaurentis & Lissa Kapstrom
When Timmy’s father mopes about not being respected despite being rich, Timmy wishes that his father could be the Mayor of Dimmsdale, but soon he winds up being chased by the paparazzi and risks having his fairies discovered.
155a
3a
"Girly Squirrely"
Sherie Pollack
Ellen Byron, Bob Colleary, Ray DeLaurentis & Lissa Kapstrom
Timmy goes a little crazy when he hears Chloe is joining the Squirrely Scouts, while a bear records something on a sheet when Timmy's father does something wrong.
155b
3b
"Birthday Battle"
Sherie Pollack
Ellen Byron, Bob Colleary, Ray DeLaurentis & Lissa Kapstrom
It's Timmy's birthday and he wants toys from his favorite franchise, the Transmorphers. When his godparents tell him that Chloe's birthday is on the same day as his, they fight over where the celebration should be taking place.
156a
4a
"The Fair Bears"
John McIntyre
Ellen Byron, Bob Colleary, Ray DeLaurentis & Lissa Kapstrom
Chloe invites Timmy, Cosmo, and Wanda over to her house to watch the Fair Bears (spoof of Care Bears). Coming up with an idea, Chloe wishes that the Fair Bears gang were real, but trouble soon begins when Wanda and Timmy are brainwashed by the gang.
156b
4b
"Return of the L.O.S.E.R.S."
Ken Bruce
Ellen Byron, Bob Colleary, Ray DeLaurentis & Lissa Kapstrom
When Cosmo and Wanda go shopping, Timmy's enemies learn that he is helpless without his fairies, and try to destroy him while he is weak, while Chloe has to deal with babysitting him.
Note: This episode, along with "Goldie-Crocks and the Three Fair Bears / Fancy Schmancy" are the only episodes to never have aired on Nickelodeon.
157a
5a
"A Sash and a Rash"
Sherie Pollack
Ellen Byron, Bob Colleary, Ray DeLaurentis & Lissa Kapstrom
Timmy's dad wants to catch a giant fish to win a trophy. Chloe makes things more difficult when she wishes that the fish can fight back, resulting in the fish rebelling against humans.
158a
6a
"Animal Crockers"
Ken Bruce
Ellen Byron, Bob Colleary, Ray DeLaurentis & Lissa Kapstrom
Cosmo and Wanda spend the night at Chloe's, disguised as flightless booby birds. But when Chloe's parents decide to return the boobies to their natural habitat in the rainforest, Timmy and Chloe have to go and save them. Note: This episode was the last to air on the main Nickelodeon channel. Starting with "Certifiable Super Sitter", all the episodes would instead premiere on the Nicktoons channel.
Timmy introduces Chloe to Mark Chang to prove that aliens exist, but when Chloe convinces Mark to reveal his true form to the world, he's put at the risk of being captured by government agents.
Mr. Crocker teaches his nephew, Kevin Crocker, how to become a Fairy Hunter.
Note: This is the final episode of the series to be animated with digital ink-and-paint. From the next episode onward, the series is animated entirely in Adobe Flash.
166a
14a
"Space Ca-Dad"
George Elliott & Keith Oliver
Ellen Byron, Bob Colleary, Ray DeLaurentis & Lissa Kapstrom
Steve Daye
July 19, 2017 (2017-07-19) (Nicktoons)[N 14] April 4, 2018 (2018-04-04) (Nickelodeon)[17]
Chloe meets Poof for the first time when he comes home from school on Spring Break. Cosmo and Wanda win a free French dinner, so Chloe gets to babysit Poof and his friends. All goes well until Vicky arrives.
Note: This is the final 22-minute special of the series. This is also the first to premiere on the Nicktoons channel and the first episode overall to premiere in 2017.
Timmy's dad and Chloe's parents don't allow the children to celebrate their Friends' Day together, due to social differences.
Note 1: This episode was the last to be completed, but wasn't the last one to air. Note 2: This episode, along with "Goldie-Crocks and the Three Fair Bears" and "Return of the L.O.S.E.R.S." are the only episodes to never have aired on Nickelodeon.
Guest stars: Cheri Oteri as Connie Carmichael and Mick Wingert as Clark Carmichael
Notes
^This episode first aired on May 5, 2016 in Latin America.
^ abThis episode first aired on May 6, 2016 in Latin America.
^ abThis episode first aired on August 17, 2016 in Israel.
^This episode first aired on August 18, 2016 in Israel.
^ abThis episode first aired on August 21, 2016 in Israel.
^ abThis episode first aired on August 22, 2016 in Israel.
^ abThis episode first aired on August 23, 2016 in Israel.
^This episode first aired on November 3, 2016 in Germany.
^This episode first aired on November 3, 2016 in Austria.
^This episode first aired on November 7, 2016 in Germany.
^This episode first aired on November 8, 2016 in Germany.
^This episode first aired on November 9, 2016 in Germany.
^This episode first aired on November 10, 2016 in Germany.
^This episode first aired on December 10, 2016 in Austria.
^This episode first aired on December 10, 2016 in Austria.
^This episode first aired on December 10, 2016 in Austria.
^This episode first aired on December 10, 2016 in Austria.
^This episode first aired on December 10, 2016 in Austria.
^This episode first aired on December 10, 2016 in Austria.
^This episode first aired on December 26, 2016 in Germany.
^This episode first aired on December 27, 2016 in Germany.
^This episode first aired on February 21, 2017 in Germany.