In the twelfth lunar month of 1976, Liang Shoushan unexpectedly gets a new lease on life, returning to the very day his wife and children faced mortal danger. Remembering the deep regret of losing his family to gambling in his past life, he charges into the snowstorm to rescue his wife and daughter, determined to turn over a new leaf and guard this home with his actions. Facing his family's wariness, he makes no empty promises, instead taking the children into the mountains to set traps and catch fish for a living, improving their lives step by step through hard work; when fellow villagers and children face hardships, he also steps forward to help. In the bitter winter, the Liang family transitions from cold and hardship to reunion and warmth, and Liang Shoushan finally understands that true reliance comes from responsibility, diligence, and cherishing what one has.