After his hometown is destroyed and is traumatized, young Eren Yeager vows to cleanse the earth of the giant humanoid Titans that have brought humanity to the brink of extinction. Humans are nearly exterminated by giant creatures called Titans.

Eren in his journey sees his mom being eaten by a Titan and vows to become strong enough to kill them all. After a Colossal Titan destroys Eren's hometown, he also meets the Autobots and joins the Scout Regiment. To now fight the Titans outside.