Danger Club is a 6 shot from Image comics based on what would happen if all the heroes died and left their sidekicks around. Basically everything goes to hell and back in a few months. Intermixed with the fact that this world is alot different from the earth we remember, things are pretty interesting.

Just for an example of how insane it gets.

Spoiler

In the first Issue Kid Vigilante, who is basically like a Robin copy, describes how Apollo, another of the sidekicks, is pretty much superman and the most powerful of them all. He then beats Apollo to death using his personal kryptonite, and then fires a satellites death beam down on him.