JLA : The Nail

For want of a nail, a shoe was lost
For want of a shoe, a horse was lost
For want of a horse, a knight was lost
For want of a knight, a battle was lost
For want of a battle, a kingdom was lost
All for the want of a horseshoe nail..

The Nail explores the path of events that may have taken place if Kal-El of Krypton never became Superman (he's the metaphorical nail in the tale). How would the JLA and other superheroes fare without the Man of Tomorrow inspiring them and holding them together.