Alexander is the orphaned son of Gregory and Mary Hart. They died due to a house fire when Alex was 12 years old. After that, he went to live with his Aunt Dana. The fire happened to be caused by the villain named "Black Ember" and his henchmen. The young boy got his powers from his father, who was also a superhero in his "glory days". Alex's superpowers include speed, strength, agility, and the ability to generate weapons made from pure energy. Hardly uses his powers outside of battle though.