The scarlet virus tears civilization apart, turning cities into hunting grounds for mutated creatures and intelligent zombies.
Former special soldier Lin Feng led medical student Su Qing, mechanic Lao Zheng and other survivors to struggle for survival in the ruins. They not only have to fight against evolved zombies that can climb walls and use tools, and avoid alien creatures that can spray acid and become invisible, but they also have to face the greed and betrayal of human nature. From slime traps in underground tunnels to desperate battles on high-altitude radio towers, you step on the edge of the abyss every step of the way.
When the legendary safe zone emerges, they discover that the real threat comes not only from monsters, but also from the survivors' masks - the ultimate test of the doomsday is never to survive, but to hold on to the bottom line of being a "human".