Tom and Jerry

Dr. Jekyll and Mr. Mouse (1940x30)

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Jerry drinks a potion that makes him grow super-strong. He decides to go after Tom because this time, he's stronger. Once the potion wears off, Tom drinks some of it himself and grows bigger and super-strong. But he then immediately shrinks to half the size of Jerry, then to the size of an ant, and runs away from Jerry, who proceeds to chase him with a fly-swatter.