Thirteen-year-old Isla and her father share a special bond. Every year they wait for the wild swan migration that arrives in their area just before winter starts. They get up before dawn to watch the magnificent birds as they arrive for the winter. But this winter, as they are beginning their annual ritual, Isla's father suffers a heart attack, and enters the hospital for an extended stay. Isla is understandably upset and scared. While she is in the hospital with her father, she meets a boy, Harry, who is awaiting a bone marrow transplant. Harry seems to be the only kid she knows who understands and appreciates her love of birds and the outdoors. Together they watch a lone swan on the lake outside Harry's window who is struggling to fly. Isla comes to believe that if she can help the injured swan to fly again, she will somehow be able to help her father, and maybe even Harry, be well again too. What she doesn't realize is that her actions will not only change their lives, but hers as well.