The live-action adaptation of the Hank Ketcham comic strip of the same name. Dennis Mitchell was a loveable young boy, dressed in overalls and carrying a slingshot in his pocket. Everywhere he went, Dennis' wide-eyed curiosity, well-meaning attempts to help out, and his simply being a normal, red-blooded American boy growing up always seemed to lead to trouble. Usually on the receiving end was Dennis' next-door neighbor, retired business machine salesman George Wilson. Dennis worshiped Mr. Wilson, but he usually displayed a less-than-cordial attitude around the young lad. Mr. Wilson's wife, Martha, adored Dennis and saw him as a surrogate grandson (since the Wilsons never had any children). Dennis' long-suffering parents were Henry (an engineer) and Alice (a stay-at-home mother). Episodes revolved around Dennis' adventures and the trouble that usually followed. Also involved in the fun were Dennis' friends Tommy, Margaret, and Seymour. During the final year of the show, Mr.