When Disney comes looking for five teenagers to serve as actors for a new technology-Daylight Hologram Images, or DHIs-there is more to it than meets the eye. Strange things have been happening inside the Florida park: parts from one ride are found mysteriously moved to another; in the Fantasmic! show, the dragon unexplainably triumphs over Mickey; little blips in story lines and "offstage" antics by characters trouble managers. Finn Whitman, a middle-schooler, goes to sleep one night and has the dream of a lifetime: he "wakes up" inside Disney World as his DHI character, a glowing hologram. He meets an old man there, Wayne, who claims to be one of the original Imagineers and explains to Finn that he "and your friends" have a mission to save the park from forces that humans can neither see nor hear.
