Attack on Titan The Movie: Part One

When the Titans first attacked, life for mankind was forever changed. Fearing the massive, man-eating humanoids, survivors constructed three enormous walls for protection. From that point on, humanity lived behind the walls-safe for the time being. A century later, life is peaceful. Eren Jaeger and his friends live inside the walls, yearning to explore beyond the borders they've always known. But the opportunity comes sooner than expected when a colossal titan appears above the wall. With a single kick, the barricade is pierced, allowing a swarm of titans to pour in and devour their newly exposed prey. Witnessing the devastation, Eren and his friends vow to destroy the man-eating terrors. The future looks bleak, but there's more to Eren than meets the eye: he may be humanity's last hope against extinction.