Nine-year-old Myles comes to learn that his family descends from an ancient, powerful civilization of people called Deltahumans. Amidst discovering that his father, Obafemi, leads a villainous group by the name of the Sinister Fathers, he wonders why he possesses no abilities. One fateful day, his powers manifest within him and comes to find out that he carries the elusive Z-gene that strengthens his abilities tenfold. The threat of the Sinister Fathers gives way to an even greater threat: Bahu, a former leader of the Guardians from the ancient Deltahuman civilization who was power-hungry and caused the collapse of their people. Myles must find his sense of self, cope with loss, and overcome the seemingly impossible as they thwart Bahu and his army. A whisper spoken to a teammate leaves the door open for possible darker times ahead, hinting at a threat that could rear its ugly head once more.