The film describes the magnificent life story of Fan Jinshi, the "Daughter of Dunhuang" and winner of the national honorary title, who sticks to the desert and protects the world's treasure Mogao Grottoes. Taking root in Dunhuang for more than 50 years, Fan Jinshi (played by Chen Jin) and her colleagues from the Dunhuang Academy have been fighting alone against the wind and sand in the northwest to rescue and protect every cultural relic in the Mogao Grottoes; "Mogao must never be allowed to The grottoes have disappeared in our generation!" As time entered the millennium, facing the mighty wave of marketization and tourists from all directions, Fan Jinshi suddenly discovered that the biggest threat to the national treasures in the Mogao Grottoes had never been It's not just the natural environment, but the unpredictable human heart... After reaching her sixtieth year, she must get out of the "hole" where she has worked hard all her life...