Teenage Mutant Ninja Turtles (2003)

S05E02 Demons and Dragons

The Turtles embark on a rigorous training journey with the enigmatic Ninja Tribunal, honing their skills and discovering new abilities. Upon acquiring the initial Lost Artifact from the Tribunal, they are struck with dread when they realize that the formidable foe they are fated to confront is none other than the long-sealed spirit of the original Shredder!