TMNT Season 6 Episode 23 - DNA is Thicker than Water Episode Title:DNA is Thicker than Water.Episode Description:Darius comes down hard on the Dark Turtles and places the blame squarely on Dark Leo's spiky shoulders. To prove that he is an apt leader Dark Leo devises a plan to destroy the Turtles from within by being wounded and captured. While being nursed back to health, Dark Leo's time with the TMNT causes him to have second thoughts about the enterprise...