Ji Jin was treated as waste and exiled to Doomsday, but he assembled a weapon in a scrap metal pile that could blow up shelters around the world. Ruan Zhao's blood is the key, Xiao Ya's body temperature is the password, and Lao Xiang's hammer is the fuse. When the commander of the Seventh District, Lu Xiao, cut off communications with his own hands, and when the tyrant of public opinion Bai Yan began to modify the memory of all mankind, the moment Ji Jin pressed the button was not revenge, but judgment - there is no refuge in this world, only a bigger cage.