The ice age apocalypse arrives, freezing everything. Xiao Ming is reborn with memories of his previous life and activates the Doomsday Fortress System. He sells off his assets, stockpiles tens of billions' worth of supplies, and builds an invincible refuge at Heilong Ridge. Ruthless and decisive, he crushes his enemies with Gatling guns and electromagnetic cannons, outsmarts Tianhai Biotech, and helps his younger sister awaken an S-rank ice ability. From holding off zombie hordes to destroying a world-ending plot, Xiao Ming uses technology and special abilities to overcome every crisis. He builds a climate-controlled Eden, becomes the apocalypse's sole ruler, and protects his family and the last hope of humanity.