* "SPACEMAN X" APPEARANCE

When a giant alien called Spaceman X arrives on Earth and begins to terrorize the planet, the Justice League comes to the rescue.

Realizing that Spaceman X is really a robot, Batman, Superman and the Atom travel into space to find the source of its power, while the other members of the League try to contain the robots rampage across the planet. When the heroes in space track down the controller of Spaceman X, Superman is able to defeat him with his super strength, rendering the Spaceman X inert, ending it's threat.

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