Will Stronghold, the son of The Commander (Kurt Russell) and Jetstream ( Kelly Preston) is not looking forward to his first day of school at his parents' alma mater - Sky High, the High School for Super heroes -- and their sidekicks.

The Commander and Jetstream have high hopes for Will. After all, they are the world's biggest super heroes! But, Will still hasn't discovered if he even HAS super powers.

On the first day of school, Will and the other new students are tested to see which academic path they will take.

Will they be super heroes? Or Sidekicks?

And, what really make a person a hero? Is it their Superpowers? Or their courage and loyalty?

When evil tries to take over Sky High, the kids find out what they are made of.