Episode 1
The Turtles have a secret that comes back to haunt them in the form of Splinter's pet goldfish Piebald who was accidentally flushed down the toilet and mutated after eating an Oozesquito.
Episode 2
April presents her award-winning documentary about the Turtles’ annual event: The Lair Olympics.
Episode 3
The TMNT must stop a persistent foe from shredding NYC, but problems arise when they split up to handle things.
Episode 4
The TMNT need to learn how to listen and get in touch with nature in order to save Todd after he's captured by a group of hunters.
Episode 5
Huginn and Muninn recall their first day working for Baron Draxum.
Episode 6
Donnie's parenting causes S.H.E.L.L.D.O.N. to run away.
Episode 7
Mikey tries to get Draxum to tolerate humans.
Episode 8
Leo gets his dream job as mascot of the local professional basketball team.
Episode 9
Ralph teaches his brothers a lesson in responsibility.
Episode 10
With their favorite space hero movie star in need of a sidekick, the TMNT do all they can to win their dream job.
Episode 11
Leo and Senor Hueso help the reformed Capitan Piel on one last dangerous mission.
Episode 12
April and Splinter encounter a gang of dangerous middle school brownie sellers.
Episode 13
Baron Draxum's lunchroom concoction comes to life and terrorizes April's school.
Episode 14
Raph is mistaken for a heinous criminal in the Hidden City.
Episode 15
Always a man of science, Donnie can't accept April going to the witches for mystic help on a science project.
Episode 16
Splinter's magical day with Mikey is interrupted by a mysterious and tiny guest.
Episode 17
Leo's efforts to get into an exclusive Hidden City spa threaten to unweave his day of relaxation.
Episode 18
April and the Turtles must help Splinter save his chain of dojos from being taken over by an evil rival.
Episode 19
Hypno-Potamus traps the Turtles in a magical 80s movie montage.
Episode 20
Big Mama turns New York City into her new Battle Nexus arena and The Turtles have to fight to save everyone they love.
Episode 21
The Turtles must enter Splinter's mind when a powerful foe returns.
Episode 22
The Turtles find a new ally when they meet Splinter's distant relative.
Episode 23
In a bid to save New York and the Hidden City, The Turtles prepare for their greatest battle yet.
Episode 24
When the Turtles find their ninpo, they must defeat the Shredder once and for all.