Three aliens come to a decimated Earth. Travelling to the Great Hall of Justice, they find a series of memory tapes chronicling the SuperFriends and the Legion of Doom. Although they find some origin tapes of Lex Luthor (a mildly altered version of the pre-Crisis origin), Apache Chief, and Giganta, they find nothing on the calamity that destroyed the Earth. They locate the Hall of Doom and discover that Luthor unleashed a solar flare that interacted with the Justice League satellite's planet-protecting shield, devastating all life on Earth. The aliens return in time before the disaster and alter the timeline with an eclipse so that Luthor's solar flare never makes it to Earth.