The Kingdom keepers and their friends discover that Maleficent and the Overtakers are plotting a catastrophic event that could have repercussions far beyond the world of Disney unless they solve a puzzle that is revealed during the Disney Cruise Line's inaugural passage through the Panama Canal.

For the five teens who modeled as Disney Hologram Imaging hosts, life is settling down when an intriguing video arrives. The Overtakers are plotting to attempt a rescue of two of their leaders, both of whom the Disney Imagineers have hidden away somewhere following a violent encounter in Epcot. An attack by new Overtakers at Downtown Disney, startles the group. A dark cloud in the Kingdom Keeper era is unfolding, and with dissension in their ranks,...

Thirteen-year-old Finn Whitman and four other young teens have been transformed into holograms to be guides for visitors to Disney World. When Finn is unexpectedly transported to the Magic Kingdom in his hologram form, Wayne, an Imagineer, tells him that he and the other guides must save the park from the scheming witch Maleficent and the Overtakers.