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- Release year
- 1952
- Genre
- Action, Adventure, Crime
- External Links
- Imdb
- Description
- Criminal Happy King returns to Metropolis, determined to rid himself of Superman. He has hired a European scientist, who has found a way to manufacture synthetic Kryponite from a fragment of the substance. In their first test, Superman feels a string from a bullet with a small fragment of Kryponite. Now, the scientist has made a bar made of Kryponite and Happy King sets a trap.