Teenage Mutant Ninja Turtles (2003) Season 5 Episode 10
Weary after their first battle with the new Shredder, the Turtles doubt they can defeat him. To lift their spirits, Splinter and the Ancient One shares a tale of the Turtles’ toddler days. The story reveals that though the Turtles were small, they overcame impossible odds to defeat a phantom bent on reviving the Shredder, though they may not remember it.
Episode Title: Fathers & Sons
Air Date: 2008-04-13