After receiving debilitating injuries at the jaws of a pack of dogs, young Cobweb is taken into DarkClan and nursed back to health. With no family left, his mother dead long ago and his sister murdered by the dog pack, he elects to stay in the Clan and train under its medicine cat, Clearwhisker, to become his successor. Soon enough, Cobweb, now dubbed Webpaw, receives a prophecy warning of a threat to the Clan within itself. As Webpaw works to prevent this prophecy from coming true, he fails to realize that he may in fact be bringing it to fruition.