Dodging predators and facing exhaustion, the migratory shorebirds known as grey plovers make ultramarathon flights from the southern coast of Australia to their Arctic breeding grounds—and then complete the journey all over again. In this "heroic and surprisingly uplifting narrative" (London's Guardian), Andrew Darby follows the odysseys of two grey plovers, and introduces the dedicated people worldwide who are working to save them from various manmade threats. As Darby is confronted with a life-threatening challenge of his own, he shares how he has drawn inspiration from these fearless plovers.