In 1859, an eleven-year-old girl, subsisting on the manna from heaven alone, is fast becoming a tourist sensation. In a small Irish village, the girl has not eaten anything in months and yet survives on her faith in an almighty God. From neighboring villages, they come to bear witness to Anna, the power of God. Fresh from the horrors of the Crimean War, Lib Wright is an English nurse who is called to the village to observe Anna. She is joined on the scene by skeptical journalist Will Byrne who is sure that foul play is at hand. As the pilgrims pore through the small town, young Anna and the ever-questioning Lib grow closer. The very thing that brought them together - the miracle of Anna’s starving - is now threatening to tear them apart.