Rise of the Teenage Mutant Ninja Turtles Season 2 Episode 12 - Finale Part 1: E-Turtle Sunshine of the Spotless Mind / Part 2: Shreddy or Not >With her return from the Twilight Realm, Karai proceeds to teach the Turtles about a mystical technique that would link them to the spirits of their Hamato ancestors, thus giving them the power to defeat their enemy. Before they can learn it, the Shredder, having regained his full consciousness, attacks their hideout. His attack forces the Turtles and April to evacuate while Splinter and Draxum remain behind to stall him.