When does All of Us Are Dead return?

All of Us Are Dead is a South Korean coming-of-age zombie apocalypse horror television series. It stars Park Ji-hu, Yoon Chan-young, Cho Yi-hyun, Lee Yoo-mi, Kim Byung-chul, Lee Kyu-hyung, and Jeon Bae-soo. The series centers on a group of high school students in the fictional South Korean city of Hyosan. It is based on the Naver webtoon of the same name by Joo Dong-geun.