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.
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.
The turtles are caught on a mobile phone's camera and must retrieve it. This is complicated by the phone's obnoxious owner, who constantly provokes Raph into losing his temper.
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.
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.
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."
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.