Su Wan, who was in her third trimester of pregnancy, just wanted to stock up on more rice, flour and oil to prepare for the upcoming birth of her baby. No one expected that this seemingly ordinary hoarding would actually become a life-saving straw for the family to survive the end of the world. Extreme cold froze the world, earthquakes tore apart homes, and floods overflowed through ruins. From crowded communities to empty grain depots, to shelters buried deep underground, Su Wan followed her family through desperate situations again and again. Ice and snow can freeze the earth, but not the hot hearts; disasters can tear apart houses, but they can't tear apart the concerns that are connected by blood. As long as the family is still there, as long as the red flag is still flying, there is always hope of survival.