Teenage Mutant Ninja Turtles (2003): Season 5, Episode 2

5 - 2: Demons and Dragons

The Turtles begin training with the mysterious Ninja Tribunal, experimenting with new powers and weapons. After securing the first of the Tribunal's Lost Artifacts, our heroes learn to their horror that the "great evil" they are destined to face is the long-imprisoned spirit of the one, true Shredder!