The Black Swan

From publisher blurb:

The Best Heroes Failed, What Can You Do Sidekick?

The Black Swan is a new One Sheet by BPB Games that places players into the roles of sidekicks and C-Rank superheroes that were sent to an alternate universe on a vitally important mission. However, upon returning home they awaken to the harsh reality that befell the Earth after their departure. A new threat arrived and made short work of all of the world's heroes and villains. But there's still hope! If the players can complete their mission there's a chance the bring the world back from the brink of annihilation!