It's a zombie apocalypse, humans against zombies, everyone frantically looks for shelter as they fight these hideous monsters. One day 19 year old Levi finds an old friend, Eren who is 17. They were well know friends before Eren stopped talking to Levi, but what happens when Levi finds him being attacked by zombies and saves him? Will they become friends again? Something more? Levi eventually finds out that Eren has lost his family, and invites him to live with him and others who have been living in a huge house full of people who are bound to protect one another and stick together to fight these monsters and try to hope and find a cure.