The Wingfeather Saga, based on the bestselling four-book fantasy series written by Andrew Peterson, tells the story of the Igiby family, who live in a world called Aerwiar, where sea dragons, toothy cows, and other strange creatures exist. The Igiby siblings, Janner, Tink and Leeli, find themselves at the centre of a great mystery which sends them on a perilous journey. Along the way they discover their true identities, fight against evil, and attempt to save their world from destruction. Throughout their journey, the siblings encounter various allies and enemies, including the wicked Fangs of Dang, led by the fearsome Gnag the Nameless. They also learn about the Shining Isle of Anniera, a faraway kingdom with a rich history that holds the key to their destiny.