A mysterious super-hero, his true identity unknown, who appears in Metropolis in July-August 1957 and performs a series of mind-boggling super-feats during a period when the world's greatest crime-fighters, including Superman, Batman and Robin, the Knight and the Squire, the Musketeer, the Legionary, and the Gaucho, are gathered in the city to accept a valuable gift from "well-known philanthropist" John Mayhew, a lavish Club of Heroes which he has constructed to serve as their Metropolis headquarters.
Since the land and building included in the gift are "worth a fortune" and Mayhew has decided to award the chairmanship of the club and the valuable deed to its property to whichever of the assembled crime- fighters performs the most impressive array of feats during the next several days, Superman becomes fearful that Lightning-Man is a criminal attempting to win control of the deed for himself. Lightning-Man does indeed win the chairmanship, but Batman ultimately establishes that Lightning-Man is in reality Superman himself and that the role of Lightning-Man was one the Man of Steel had unwittingly concocted during recurring short-lived periods of temporary amnesia brought on by the overhead orbiting of a meteoric Kryptonite fragment (WF No. 89: "The Club of Heroes!"). (TGSB)