"Catten Stein" is the twenty-first episode of The New Adventures of Mighty Mouse and Heckle and Jeckle. It originally aired on CBS on November 24, 1979.


Mad scientist Pearl Pureheart creates a robot that is patterned after Frankenstein's monster, but plans to use it for the good of all mouse kind. Harry, however, is looking for the opposite of that and want to make the creature evil.

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