just show the kid star wars from the phantom menace to the empire strikes back, "first" trilogy is an innocent kid gets powerful and turns evil, the second trilogy is an innocent kid that vanquishes evil. and teach him that you can chose those paths or anything in between.
Watch The Legend of Korra Online
The Legend of Korra is set in the Avatar universe as a spin-off of Avatar: The Last Airbender. The new series takes place seventy years after the end of the Avatar: The Last Airbender story arc with new characters and settings. The protagonist of the new series, Korra, the Avatar after Aang, is a hot-headed and rebellious young woman from the Southern Water Tribe who is ready to take on the world. The series follows Korra as she faces an Anti-bending Revolution while mastering the art of airbending from Aang and Katara's son, Tenzin.