Appearing in "Earth's Sister Planet"
Synopsis for "Earth's Sister Planet"
Superman seeks to stop an intelligent dinosaur from a sister-world of Earth from destroying the human race and taking over the planet.
Appearing in "The Monumental Menace of Metropolis"
- Appearances not yet listed
Synopsis for "The Monumental Menace of Metropolis"
A trapped alien super-hero switches bodies with Superman in order to attempt to fight off invading aliens.
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