From publisher blurb:
When Super-science, Metahumans, and magic come together the possibilities are limitless. Create a rich comic book world uniquely your own. Protect the world from mad mutants, evil organizations bent on world domination, corrupt government groups that seek to control Metahumans or have them neutralized, and intergalactic conquerors seeking to harvest the Earth for their own reasons.
Using the Open Action System, players can create virtually any hero they can imagine. With guidelines for running individual heroes or creating their own world-class super team, the Open Action System is designed for fast, creative play that rewards characters for their backgrounds, talents, and creativity.