Metok (25), a Tibetan nun In India, is medical student, gets a phone call from her mother who asks her to attend a woman who is about to give birth.

During her journey she faces with geographical and climatic difficulties, and military controls that she has to overcome to complete her mission. 

She finally crosses the border and reaches Tibet. There, attending a long childbirth, she delivers the baby of the Tibetan couple. 

A short time later, she fulfills one of her greatest wishes finding her family whom she has not seen since she was little.