Life as an undead fifth grader is pretty good for Arnold. He finally feels like he can embrace both his zombie side (unlimited jellybeans!) and his regular kid side (kickbutt trampoline moves!).

And now there's a new zombie in town. Azalea, Arnold's closest friend from the Territory, is living with Evan's family and ready to try out human elementary school. But when Azalea questions whether or not she wants to return to the Territory, Arnold starts having doubts, too. Should he stay— or go?