| 21. | Robot Archie was built by Professor C . R . Ritchie to be the world's most powerful mechanical man.
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| 22. | The scientist's brother however is successful in creating a second mechanical man which he uses to combat the original.
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| 23. | Impressed, Mrs . Weston agrees to a tour of the corporate facilities of U . S . Robots and Mechanical Men.
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| 24. | The two mechanical men fight each other in an opera house and end up destroying each other as well as the opera house.
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| 25. | He played a deaf-mute who, as a " mechanical man " in a department store window, witnessed a gangland murder.
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| 26. | Flint eavesdrops on their conversation and it is mentioned that Mephisto can create " mechanical men " through a technology that only he understands.
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| 27. | During the final battle, Mado frantically attempts to control the mechanical man and is electrocuted at the control panel by a short circuit.
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| 28. | Soon after, the two killers show up to report to their boss, the Mechanical Man, forcing Blackie to flee once again.
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| 29. | Blackie eventually discovers that an espionage ring led by the Mechanical Man is trying to take a stolen navy bombsight out of the country.
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| 30. | Science-fiction writers have fueled our robot fantasies for decades, building up hopes for a mechanical man capable of yelling " Danger!
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