IGN: "This week's Teenage Mutant Ninja Turtles shifted focus back to the Kraang following Leonardo's first run-in with Karai, Shredder's deadly kunoichi daughter. "The Alien Agenda" began with Karai taking notice of a back-alley fight between the Turtles and some Kraang soldiers. And as expected, when Leo saw that he was being watched by his new crush, he promptly switched into show mode, nabbing all the best kills from his brothers and putting Raphael on edge." (Teenage Mutant Ninja Turtles (2012), TV) 8.8/10