Enemy Of My Enemy

"Enemy of My Enemy" is the 20th episode of Season 1 of Teenage Mutant Ninja Turtles. It premiered on April 12th, 2013.

Official Description
After witnessing the Kraang in action, Karai realizes the seriousness of the alien threat and proposes an alliance with the Turtles.

Characters

 * Leonardo
 * Donatello
 * Raphael
 * Michelangelo
 * Master Splinter
 * April O' Neil
 * Karai
 * Shredder
 * Ivan Steranko
 * The Kraang
 * The Foot Clan

Trivia

 * First appearance of Ivan Steranko.
 * Karai reveals to Leo that The Shredder is her father.
 * Donnie's ID on Leo's Cell phone says Don Boi, with a picture of Dr Mindstrong.
 * This is the 2nd time The Turtles fight Shredder.
 * The end credits name the Russian arms dealer "Steranko", whose name did not come up at all in the episode.
 * When Mikey is about to shoot Shredder with the electric grenade he says "Booyakasha Shredhead" which could be a reference to the 1987 episode "Cowabunga Shredhead".