1

Episode 1

When Splinter allows his teenage sons, the Mutant Ninja Turtles, to visit the surface for the first time, they discover that the surface world isn't as simple as it first appears.

2

Episode 2

When Splinter allows his teenage sons, the Mutant Ninja Turtles, to visit the surface for the first time, they discover that the surface world isn't as simple as it first appears.

3

Episode 3

Raphael loses his temper when he is insulted by a New Yorker named Vic. When Vic catches the Turtles on video, the Turtles must get the phone back or risk the possibility of their existence becoming widely known.

4

Episode 4

To prove that Turtles can be friends with humans, Michelangelo uses a social networking site to befriend Chris Bradford, a famous martial artist who is secretly Shredder's top lieutenant.

5

Episode 5

When the Turtles sneak out against Splinter's wishes, they battle Baxter Stockman, a deranged inventor in mechanical battle armor.

6

Episode 6

Weary of using his simple bo staff to fight the technologically advanced Kraang, Donatello creates Metalhead, a remote-controlled robot turtle to fight in his place.

7

Episode 7

Donatello and April investigate a scientist's disappearance, but discover a conspiracy regarding a bizarre psychic monkey instead.

8

Episode 8

Leo fears his act of mercy has come back to haunt him when Xever holds a local noodle shop owner hostage.

9

Episode 9

After April receives a warning from her imprisoned father, she and the Turtles embark on a mission to save him and stop the Kraang from detonating a mutagen bomb in the city.

10

Episode 10

The Turtles must defend their home in the sewers when Bradford tries to destroy it with a dangerous chemical.

11

Episode 11

When simultaneous threats from the Purple Dragons and Baxter Stockman's mechanical Mousers force the Turtles to split into two groups, Donnie & Mikey must prove that their "B Team" is just as valuable as Leo & Raph's "A Team."

12

Episode 12

Michelangelo befriends an unstable mutant alligator who possesses a strange piece of Kraang technology, but the other Turtles aren't sure whether Leatherhead is a friend or a foe.