Genevieve lives with her mum and her brother Jack in a little stone harbour side house, but ever since the day that her daddy's fishing boat got lost at sea, she has stayed well away from the shore. Instead, she gazes across the harbour at the castle on the other side and dreams of being a princess. One day, a tall man arrives sailing a little boat with red sails. Genevieve's mum introduces him as Cedric, her new friend. At first, Genevieve is apprehensive but she sees the difference Cedric brings about in mum and slowly he becomes part of the family. So when Cedric suggests a family outing in his sailing boat, will Genevieve be able to overcome her fear and visit the castle she has long dreamed of?