"Insane in the Membrane" is the ninety-seventh episode of the animated series Teenage Mutant Ninja Turtles (2003). This episode did not air on US affiliates of 4KidsTV because the content of the episode was deemed too graphic in nature. It was later made available on 4KidsTV's website. It wouldn't be until August 2015 that it would air in the US on the Nicktoons Channel.