When a mysterious villain attacks the seemingly normal town of Red Circle, the town's adults suddenly vanish. The kids left behind are brought together by an old man who turns out to be the long-forgotten superhero, the Shield, and they discover that their missing parents were once his teammates in the greatest superhero group that ever lived, the Mighty Crusaders. In order to defeat the forces of evil and rescue their missing parents, these teens must become the next generation of super heroes: the New Crusaders.