Shingeki no Kyojin (2013)

A colossal invasion threatens the existence of humanity.

A hundred years ago, humanity was on the brink of survival under threat from large humanoid beings called Titans whose sole purpose of existence seems to be to devour humans.
The survivors responded by constructing three concentric walls: Wall Maria, Wall Rose and Wall Sina, which graced them with a century of peace.
However, one day a Colossal Titan breached the outer wall allowing smaller titans to invade the human territory.
Eren Jaeger, a boy whose mother was eaten during the invasion, vowed to wipe every last Titan off the face of the Earth.