Several hundred years ago, humans were nearly exterminated by giants. Giants are typically several stories tall, seem to have no intelligence, devour human beings and, worst of all, seem to do it for the pleasure .rather than as a food source, A small percentage of humanity survived by enclosing themselves in a city protected by extremely high walls, even taller than the biggest of giants. Flash forward to the present and the city has not seen a giant in over 1oo years, Teenage boy Eren and his foster sister Mikasa witness something horrific as the ciy walls are desroyed by a super giant that appears out of thin air.