What is the story of the 77-day wolf pack ending movie?

1, "Seventy-seven Days" The end of the wolf pack: eating both the male master and the little wolf.

2. "Seventy-seven Days" is based on Yang Liusong's real experience and his novel "The Open Field in the North". It tells the story of Lao Yang who lost herself in the city and a paraplegic but optimistic female photographer. It took them 77 days to get out of Qiangtang no man's land together.