The Earth appears to be deserted and everything in ruins. Three aliens land on Earth and try to piece together what has happened. They play back history tapes in the Hall of Justice and learn the origin of the Legion of Doom. When they play back the Legion's history tapes they discover that Luthor launched an Ion powered rocket at the sun creating a solar flare which the Superfriends were unable to stop. The aliens must decide whether they should use their powers to help avert this disaster.
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Last episode of the series. See more
I wonder what happened to this planet.