When the evil Overtakers gain control of a computer server at the Magic Kingdom, allowing them to put the holographic hosts into permanent comas if they should fall asleep, Finn and the others race against time to find the missing Jez and foil the plan.

Using cutting-edge technology called DHI (Disney Host Interactive), the Disney Imagineers capture the images and voices of Finn Whitman, a young Orlando teen, along with four other kids, then transform them into hologram projections that guide guests through the park. The new technology turns out, however, to have unexpected effects that are thrilling and scary when Finn finds himself transported into his DHI form at night. Is it a dream or reality?...