An unknown virus sweeps the world within 72 hours, turning those infected into bloodthirsty monsters. Survivors struggle to survive in the ruins. They not only have to face the threat of the infected, but also be wary of the malicious intentions of other survivors. A deadly virus that spreads quickly, and those infected are extremely aggressive. Scarcity of supplies, threats from infected people, and tests of humanity. Some survivors mutated due to the virus and gained supernormal abilities.
