I don't know when, giants who specialize in hunting humans appeared all over the world. The appearance of terrible natural enemies eventually led to the decline and reversal of human civilization. In order to stop the endless hunting of giants, humans built three high walls to protect themselves, and a hundred years have passed. The young Allen (Haruma Miura) was tired of being imprisoned. One day he instigated his partners Mikasa Ackerman (Kiko Mizuhara) and Armin Arnold (Kanata Hongo) to try to climb out of the wall, but he witnessed the terrible scene of the super-large giant breaking the wall and countless giants rushing in. In an instant, the quiet and peaceful city became a hunting ground for giants, and Allen and others witnessed an unforgettable bloody scene. Two years later, Allen and Armin joined the Survey Corps, and they were about to set out with their comrades to repair the outer wall and retake the fallen land. This is destined to be a very dangerous journey... This film is adapted from the original manga of the same name published by Isayama Hajime in "Bessatsu Shonen Magazine".