Despite suffering from a lack of action, "Karai's Vendetta" is still a topnotch episode thanks to tight pacing and a solid script. Sure, I would have loved to see more exhilarating fight scenes, but this episode's big on intrigue and even bigger on laughs.
We pick up right where the last episode left off: Shredder and Karai now have a pet/hostage Kraang. After an amusing segment and a surprisingly funny line from Shredder ("Is this how they always talk?"), it's revealed that April is very important to the Kraang's agenda. While this isn't relevant to Shredder's interests, the reveal that she's protected by the Turtles certainly is. Believing he can use her to lure out the heroes, the villain sends Karai to kidnap April. Meanwhile, over in the lair, Donny discovers the Kraang have a deadly plan to transform our water through an underground base (not like the East River's exactly clean to begin with, though). The heroes in a half shell race to stop this plot and April is left to hold her own. Fun ensues.
As I said above, the jokes are in top form with this one. From Splinter's uncomfortable lesson to Mikey's four second victory dance to Leo's deadpan reaction to the epic periscope, the Turtles' half of this story was filled with sharp humor. You truly have a heart made of ice if the "sea monster's" conclusion doesn't make you laugh and soon after exclaim, "Awww!"
As for April's side of the story, the series takes a surprisingly dark and far more serious turn. I was skeptical about having Karai hunt down April because I feared they would have to seriously downplay Karai to make it even remotely fair. Luckily, I was wrong. The moment in the restaurant was unexpectedly twisted (I honestly thought she'd take a sip before the reveal). The chase went mostly by the numbers but it was nice to see the city populated (even if they do recycle character models). I understand the battle between the two was supposed to feel inspirational (April's drive and refusal to give up), but I thought the beat down was almost painful to watch at times. It was shockingly bleak feeling for the program -- not saying that's a bad thing, of course... just unexpected. As usual, the conclusion tied back to Splinter's lesson and certainly delivered some heavy foreshadowing when it comes to diving into Karai's origin story.
This episode opens up the door for a lot of speculation. April was immune to the "Kraang water," and that makes me wonder if she'll possibly serve as the show's new take on Fugitoid. Seems like a possibility to me, especially seeing as IDW's General Krang was in pursuit of the character. Could this mean her father created her, too? If so, is he just a gifted human scientist, or could he be from Dimension X as well? Also, April's weapon was left behind during the scuffle -- a weapon that clearly held a fair amount of significance to Splinter. Will Karai take it and this will somehow link back to her past? I think it's safe to say we all think there's far more than meets the eye with her. No matter which road they decide to take, Nick's Turtles has been tons of fun thus far, and April's final remark has me incredibly stoked about what's to come. I have a good feeling we're about to see the series take some major strides with the overall narrative and I can't wait for the next episode.