1Au fond des bois
The team tries to deal with the possibility that Leo will not get better; a new mutant captures Raphael.
2La chasse au Big Foot
When the Turtles discover Bigfoot in the woods, Donnie befriends it and insists they protect it from a hunter.
3Secrets enfouis
When the guys discover a Kraang ship buried under April's house, they also uncover April's lost mother.
4L'attaque des grenouilles mutantes
When he gets upset, Mikey flees and befriends a mutant frog in the woods, only to learn the frog and his family have nefarious plans.
5Mauvais rêves
When the Turtles are trapped in their dreams by creatures, April and Casey must figure out how to wake them up.
6Le fou du volant
When Casey and Donatello bond while building Casey's new hot rod, the bond is challenged by a hot-rodding mutant.
7Les yeux de la chimère
When Casey, Raph, Mikey and Donnie are captured by a new mutant, April and Leo must overcome disabilities in order to save them.
8Quête spirituelle
Leo takes the Turtles to train in the woods in an advanced ninja ritual; the Turtles must overcome their weaknesses and face their enemies to become a true ninja.
9Retour à New York
When the Turtles return to the city to search for Splinter, they discover that the city has been overrun with Kraang.
10La chasse au serpent
As the Turtles search for Karai, they are forced to deal with a city filled with Kraangdroids as well as Zeck and Steranko.
11Le rhinocéros et le cochon
Donnie finishes a new batch of retro-mutagen in hopes of saving Karai; the Turtles are hunted by Shredder's new henchmen, Bebop and Rocksteady.
12La bataille de New York, 1ère partie
The Turtles must brave the bizarre world of Dimension X to save the enslaved people of New York. Part 1
13La bataille de New York, 2ème partie
Part 2
14Casey Jones combat le crime
Casey Jones thinks he can take on the criminal underworld on his own, but soon discovers that he is in over his head.
15Le vengeur toxique
A new and unfamiliar mutant known as Muckman begins to gain notoriety as New York City's "Monster Hero."
16Le choc des mutanimaux
The Shredder kidnaps and experiments on the Mighty Mutanimals.
17Mon nom est Mondo Gecko
Michelangelo and Casey become friends with Mondo Gecko, a radical, skateboarding, reptilian teenager.
18Le venin mortel
When Karai is brainwashed, she begins hunting the Turtles.
19Perdus dans le temps
When the Turtles are whisked through time by apprentice Time Master Renet, they all must work together to defeat the evil Time Master Savanti Romero.
20La légende des Yokaï
When the Turtles are accidentally transported to the past, they happen to cross paths with a familiar ninja clan.
21L'attaque du Méga-Shredder
Leonardo decides to sneak into Shredder's lair alone, and winds up facing the biggest mutant threat yet.
22L'Herbe-Barjo
After an accident, Donnie finds himself slowly losing his intelligence.
23Piège puissance quatre
After being kidnapped by the hypnotized Karai, the Turtles are placed in deadly traps that they must work together in in order to escape. Splinter, in his efforts to save the turtles, is forced to face Karai in order to free her from Shredder's control.
24Un dinosaure dans les égouts
Raphael meets a confused alien dinosaur named Zog, the Triceraton.
25L'anéantissement de la Terre, 1ère partie
When the turtles get word of the Kraang's return, they realize there is an even bigger threat coming to Earth.
26L'anéantissement de la Terre, 2ème partie
When the turtles get word of the Kraang's return, they realize there is an even bigger threat coming to Earth.