A young Jewish girl revels in the joy of being engaged until she finds herself pregnant. The townspeople wouldn't approve; stoning was the sentence for infidelity. How would she tell her parents? What would Joseph think? Would he divorce her or support her? Nevertheless, Mary accepts the fate of this unexpected pregnancy. She will have this child, no matter what anyone else says.

Mary's life takes an unexpected turn when an angel reveals that she will be the chosen one to give birth to the son of God. The news brings immense happiness to Mary, but it also presents a unique challenge – how can she explain this divine calling to her betrothed, Joseph? Will he be able to accept that she has been chosen for a greater purpose? The Chosen One: Mary's Story tells her story from the perspective of a 13-year-old.