One's Just A Loner

At the Academy Institute of Advanced Arts, superheroes are trained. They are divided into their Squads, but this year, this year something is going on. Students have vanished, Villains are growing in numbers an becoming harder and harder to beat.
At the heart of it all, a few teens try and save their sheltered community, hidden as it is from average humanity.

Superheroes save us. But who saves them?