The royals celebrate their last day of school -- and on Earth -- with friends, but Zadra's arrival with revelations of betrayal shakes them to the core.

Starring:

Tatiana Maslany , Diego Luna , Nick Offerman , Frank Welker , Steve Alterman , Mitch Carter , Glenn Close , Cole Sand , Julie Falls , Alon Aboutboul , Nick Frost , Fred Tatasciore , Steven Yeun , Laraine Newman , Charlie Saxton , Hayley Atwell , Cheryl Hines , Tom Kenny , Uzo Aduba , Darin De Paul , Peter Falls

Genre:

Animation, Action, Adventure, Comedy, Family, Fantasy, Sci-Fi