In 1978, at the foot of Daqingshan in the Northeast, hunter Lin Changzheng agreed to form a family with widowed sister-in-law Zhou Xiulan and her daughter Zhao Lanni to help them survive. Facing debt collection from Second Aunt Sun, harassment from Ma Dabiao, and schemes from villains in the village, Lin Changzheng used his superb hunting skills to go deep into the mountains to hunt wolves and wild boars, leading the mother and daughter through the famine. Through repeated life-and-death struggles, he not only guarded this family, but also led the villagers to contract forest areas and get rich by relying on the mountain. However, the secrets hidden deep in Heixiazigou also dragged them into an even greater crisis.