All her life Oona dreams of having a cabin of her own. Since she has no family, she moves from cabin to cabin, helping wherever there is trouble or need. But when the Great Famine comes and the last of the potatoes is eaten, Oona knows that no one will want another mouth to feed. On a snowy Christmas Eve, she bids a silent farewell to the village and sets out. Much to her surprise, the magic of a white Christmas awaits her, as do hundreds of fairies who have been keeping watch over Oona since the day she was born.