Splinter and the Ancient One tell the Turtles the history of the original Shredder.
Tropes used in this episode:
- Bystander Syndrome: The Ninja Tribunal's opinion on Yoshi fighting against the Utrom Shredder. This is why Splinter has a grudge on them, blaming his master's death on them. The season finale reveals they didn't take action because otherwise the Utroms never would've relocated to New York and Turtles would never have mutated.
- Deal with the Devil
- Origins Episode: For the Ninja Tribunal and the original Shredder.
- Took a Level in Badass: The Ninja Tribunal in the flashbacks. They went through extensive and prolonged training to be able to defeat Shredder.
- Whole Episode Flashback