When the extreme cold apocalypse comes, Jiang Jin is taken away by his fiancée and cousin the snow fortress he built himself, and eventually dies tragically in Feng Xue. When he opened his eyes again, he unexpectedly returned to the thirty days before the cold wave broke out, and unexpectedly awakened the "fortress core" that could swallow materials and continuously evolve.
Hoarding supplies, upgrading tanks, gathering doctors, mechanics and retired soldiers, in this life, Jiang Jin will not only make betrayers pay the price, but also drive a mobile fortress to break through the siege of the frozen city, the tide of black snow beasts and the warm underground city.
However, as the truth of the disaster emerged, he gradually discovered that the cold wave sweeping the world was not a simple natural disaster, and his rebirth had already been written into an experiment that could reshape the human order.
