"The Monster of Mudville Flats" is the third segment of the eighth episode of the animated series based on the comic strip of the same name, Dennis the Menace. It originally aired on October 1, 1986.


Dennis and Tommy set traps for the Mudville Swamp Monster while Margaret whines, but allows them to use her "tracking equipment." The monster scares Margaret into the trap, and when the Ranger arrives to help, he congratulates them for finding the missing hippo from the zoo.

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