Batman, Robin, Wonder Woman, and Green Lantern guard liquid light at the Astro Chemical Research Plant. Cheetah steals the Lasso of Truth, Brainiac takes Green Lantern’s ring, and Scarecrow grabs the utility belts. The villains stage a kangaroo trial at the Hall of Doom, using the stolen gear as false evidence. Brainiac forces the heroes to battle android doubles, and they must outwit their own weapons to escape before it is too late.