Fourteen-year-old Billy Harriman can feel the changes. The sharpening of his senses. The incredible strength. The speed, as though he can text-message himself across miles. The confidence and the strange need to patrol Central Park at night. His dad had been a hero, a savior to America and a confidante of the president. Then he died, and the changes began in Billy. What Billy never knew was that his father was no ordinary man - he was a superhero, battling the world's evil. This is a battle that has been waged for generations and that knows no boundaries. And now it's Billy's turn to take on the fight. It's Billy's turn to become a hero.