Teenage Mutant Ninja Turtles (2003) (2003)

S5E3 Legend of the 5 Dragons

The Turtles undergo rigorous training with the Ninja Tribunal to thwart the Shredder's return. However, when Splinter and the Ancient One voice their concerns about the Tribunal’s trustworthiness, the Turtles are left puzzled. If everyone shares the same objective, why the skepticism? To shed light on the risks, Splinter and the Ancient One unveil the hidden past of the Tribunal, revealing the shocking origins of the Shredder himself!