Zombie apocalypse AU. Eren Yeager, 15 Lost, a stubborn brat he comes across a police officer Named Levi Ackerman. levi takes the kid in for searching, No parent's, no siblings. what a tragic science experiment goes haywire, levi has to deal with more than what he gots now. can they both survive? or will they get trampled by fear, and anxiety. What's worse? a group of Walkers to.