Synopsis: Earth has completely succumbed to an alien invasion, and the planet, which was once everyone's home, has become a hell. To stop the monsters from invading, the guard troops formed by different countries have disregarded their personal safety to defend what is left. Cheng Ling, who barely survived the times by scavenging from the garbage, met Zhu Rong's team when he was being attacked by an alien hellhound. With the help of Gao Ren and the others, Cheng Ling believes that
