Underground Metropolis of Beijing:

During the world’s largest nuclear explosion, billions of people died, only a few billion survived. The survivors were forced to move underground and live in an underground city, Zhao Xin and Liu Ci Ren was one of them, both of them met a difficult decision: take a risk and sacrifice themselves  save their family from hunger? Or maintain the situation and endure the pain of their families. Read the Underground Metropolis of Beijing to find out what’s their decision.