Code Geass

This allegorical story promotes Japanese pride as Zero and other rebels fight to bring down their Western conquerors and drive them back to the region once known as North America. Zero and bands of insurgents launch terrorist attacks against the Empire in hopes of weakening its power, sometimes blowing themselves up in the process. Imperial Forces retaliate by ruthlessly shooting innocent Elevens (former Japanese citizens) to maintain control. Britannia's fleet of Knightmares -- giant automated robot-like warriors designed to destroy everything in their path -- also contributes to the brutality.

Although the series contains some extremely violent imagery (like blood spattering and people being gunned down at point-blank range), these actions take place within a specific context, often forcing characters -- especially Lelouch's best friend, Suzaku (Yuri Lowenthal) -- to question the ethical appropriateness of terrorism and crossing moral boundaries in the name of freedom. Even Zero finds himself grappling with these issues as he tries to establish a peaceful world for his injured sister while also attempting to find a way to avenge his mother's death at the Empire's hands. It's a bit too mature for tweens, but the combination of action and psychological questioning will score big among teen and adult manga fans.