It's not who I am underneath, but what I do that defines me.
Bruce Wayne is constantly tortured by his childhood memories when he witnessed his parents being murdered. Taken under the wing of The League Of Shadows, a deadly ninja assassin army devoted to erasing crime with their own brand of harsh justice. After completing training, Wayne refuses to join them on account of not agreeing with their methods, he returns to Gotham City to reek his own one man war against crime.
Director Christopher Nolan literally goes back to Batman origins to not just give the dead franchise a kiss of life,... read the rest.