You will Watch TMNT Season 1 Episode 17 online for free episodes with HQ / high quality. Stream cartoons TMNT 117 The Shredder Strikes Back, Part 1 During an early morning training run, Leonardo encounters a legion of Foot Ninja and Hun. A thunderstorm develops not long before Leo encounters a new foe, the Foot Elite. As he becomes overwhelmed, Leo witnesses the return of the Shredder. Shredder and the Turtles have their second battle at April’s shop.