The Endless Ghost turns out to be the [Watcher of the Gold]?, who is on his way to reuniting the [Gold Casket]? with the other polarities in Time City. Because the [Silver Casket]? and the [Iron Casket]? have fallen into the wrong hands, the [Lead Casket]? is used to prevent him from reaching his destination, and potentially delivering Time City into the control of the megalomaniac Lee family.