The Flash finds himself in a war torn alternate timeline and teams up with alternate versions of his fellow heroes to return home and restore the timeline.

The world's finest heroes found the Justice League in order to stop an alien invasion of Earth.

A crusading school principal gets back into action as the original African-American electrical superhero.

After freeing helpers in Arkham, Freeze and Penguin freeze down Gotham City and attack with huge monsters. Batman responds, helped by other heroes.