"The Alien Agenda"

Air Date
February 9th, 2013

Synopsis
Leo and Raph fight over whether or not they can trust Karai. The Turtles get their first look at high school when April's school project draws attention from the Kraang. Karai learns about the existence of the Kraang and tries to tell Shredder, but he is uninterested. Karai then follows the turtles into a Kraang research facility, where she is found by Raphael, which ultimately leads to a battle between the Kraang and the Turtles.

Major Characters

 * Leonardo (Jason Biggs)
 * Raphael (Sean Astin)
 * Donatello (Rob Paulsen)
 * Michelangelo (Greg Cipes)
 * Karai (Kelly Hu)
 * Kraang (Nolan North)
 * Justin

Minor Characters

 * Splinter (Hoon Lee)
 * Mrs. Campbell (Cassandra Peterson)
 * Shredder (Kevin Michael Richardson)
 * Chris Bradford / Dogpound (Clancy Brown)
 * Xever / Fishface (Christian Lanz)
 * Baxter Stockman (Phil LaMarr)