The sun suddenly went out, and the Ice Age came overnight. When the super wealthy started a dehumanizing fight for the right to survive and rule in the last fortress of mankind, Gu Zhao, the real daughter Gu Zhao who was living outside, used his last resources to hire Lu Jin, a retired soldier codenamed "Yam Luo". His mission is to protect her from surviving, and her goal is to seize the highest authority in this frozen hell. In the severe cold of -50 degrees below zero, one of them is a cold brain for strategizing, and the other is a blood-stained sword that is not afraid of death. Fight against natural disasters, eliminate inner ghosts, and resist foreign enemies. In this doomsday game without rules, they have gone from a cold employment relationship to each other's only back and warmth, and together they have established new iron rules for the remaining fire of mankind.
