After losing his father, Adi, a grief-stricken preteen boy, befriends sock-puppet ARO, who mysteriously operates from his hand while his older brother Marcus becomes his caretaker. Wanting to escape reality, Adi convinces ARO to transport him to ARO's World, where he hopes to change the past by reuniting with his dead father. However, on getting there, Adi confronts his most traumatic memories, sees through ARO's true monstrous form, and must decide to destroy the only source of his escape to return to the real world and Marcus.