While guarding an Astro Chemical Research Plant where a new energy source is being developed Green Lantern, Wonder Woman and Batman and Robin are attacked by Cheetah, Braniac and Scarecrow. The Legion wins and the four Superfriends are captured and brought before the Legion for crimes against the Legion. They are found guilty and sentenced to fight Android replicas of themselves. Written by
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Even though Black Manta and Bizarro are at the government base stealing the liquid light, they simultaneously appear at the trial in the Hall of Doom. See more
Radar scan is negative. Readings indicate there's nothing in the sky for 100 miles.