Peter leaves the relative safety of Mollusk Island along with his trusted companion Tinker Bell for the cold, damp streets of London. On a difficult journey across the sea, he and Tink discover the dark and deadly, slithering part- man/part-creature Lord Ombra. It seems that the dreaded Ombra has a variety of mysterious powers, including the ability to make shadows disappear. When Peter reaches London, he sets out to find the indomitable Molly. Together they must combat Ombra's terrible forces to both protect the Starcatchers and the treasured starstuff and, most important, to rescue Molly's mother from the clutches of evil.