His father is Titan, the world's greatest hero, a powerful warrior who has saved the earth time and again from countless dangers. But even a seasoned warrior can fall in battle, and when that day finally comes, it is up to high school student Carson Walker to take his father's place as the costumed hero Sunn. But powers and a mask may not be enough to win the day when he finds himself facing the villainous Bakemono, the man who nearly killed his father. Let the baptism by fire begin!