At the beginning, the protagonist Ying Jun was reborn and got the system. Later, the system upgraded and rewarded the base vehicle. Ying Jun and his maid Xiaocui were in Xiaori Kingdom, Zhao Gao's Jin Yiwei, and five hundred special forces destroyed Xiaori. Xiao Cui, Zhao Gao, and the special forces conquered the beautiful country and united the whole world to resist the alien invasion. After defeating the aliens, Ying Jun and Natasha accidentally entered the time and space tunnel and came to the doomsday survival world. While traveling through the time and space tunnel, the small world unexpectedly closed. There were only Natasha and Ying Jun, and a base vehicle. The system upgrade task required them to collect Gather 100,000 survivors to upgrade the first-level system. The system can be reopened after upgrading to the third level. The small world returns to the original planet. The indigenous residents of the doomsday survival world include four super families, nine intermediate families, and hundreds of small families. Zombies are everywhere in this doomsday survival world. The Zhao Kai and Zhao family bases of the four major families, Li Bai, Li family base, Sun family base, and Qian family The old man Qian's base has been launching attacks on Ying Jun's Qinglong base. The Qian's base is also the mastermind of secret research on people infected with the zombie virus. In the end, the old man Qian activated the explosive device. At the last second, the system took Ying Jun, Natasha, Tanya, and Yuri Liu Ruyan through the time and space tunnel to the planet during the warlords' melee. The system characters Natasha, Tanya,