You will Watch TMNT Season 1 Episode 23 online for free episodes with HQ / high quality. Stream cartoons TMNT 123 Return to New York, Part 3 With Baxter Stockman causing a problem for everyone, the Turtles work with the Shredder to stop him. Just as Stockman is out of the way, the Turtles enter into a rooftop battle. With help from a mysterious group of warriors known as the Guardians, the Turtles enter into what seems to be a fight to the finish against the Shredder. Stockman plans his revenge on Shredder and the Turtles. The guardians make another appearance in this episode.