The Boss Gets Scalped

The Boss Gets Scalped is the eighty ninth episode from Season 1.

Plot
Henry has arrived home in a panic because his boss, Mr. Thumblethin, is coming over for dinner. To make matters worse, the arrangement was just as Henry was about to leave work for the night, and he was in such a rush, he got his necktie stuck in his briefcase. Alice explains another problem with Henry's dinner with his boss; Dennis is having his meeting with the Wigwam Indian Club, which includes himself, Joey, Gina, Jay and Tommy since he joined it at summer camp the previous year.

After seeing Henry's problem with his tie, Dennis gets out a pair of scissors and cuts it off, causing the briefcase to land on Henry's foot. Because of his dinner arrangement, Henry orders Dennis and his friends to go up to his room and stay up there until his boss leaves. After Dennis suggests getting something to eat after Joey admits he's hungry, Tommy reminds him he's not allowed to go downstairs, but Dennis decides to get on the banister. They all unintentionally crash into Henry, who then orders them to go to Dennis' room and not to come down the stairs or the banister.

Henry tries to get Mr. Wilson to come over and watch Dennis and friends, but Mr. Wilson refused because of Dennis' antics. Henry tries to sweeten his deal with Mr. Wilson to get him to watch Dennis and friends, ending with four weekends. Upon Mr. Wilson's arrival, Henry reminds Dennis and friends not to go down the stairs or the banister and to have fun quietly. To ensure Dennis doesn't go out of his room, Mr. Wilson locks the door, but Dennis and friends jump on the bed, being as loud as anything.

Mr. Wilson yells at them to be quiet and to play quietly. After Tommy and Joey admit they're hungry, Dennis orders all his friends to get off his bed and huddle. Meanwhile, at the dinner table, Henry treats his boss, Mr. Thumblethin, to dinner. As he's doing this, Dennis and friends sneak out of his room through the window, but not without tying Mr. Wilson up to a chair. Dennis and friends manage to sneak in through the front door, and crawl past, and do their best not to be noticed by Henry or Mr. Thumblethin. But Ruff, who is under the table, notices, and runs out, making a mess of the dining table.

Henry tries to clean his boss up as an apology. Dennis admits his excuse for sneaking out of his room was because he, Joey, Tommy, Gina and Jay were hungry. Mr. Thumblethin admits he was a Wigwam Indian in his youth and that he's a tribe leader named Chief Thumblethin. After Mr. Thumblethin has his Indian Meeting with Dennis and friends, Henry admits he was worried for nothing and that everything went just fine.... well, almost everything. Because Mr. Wilson, still tied to the chair, sneaks out of Dennis' room and back home, falling over the fence on the way, swearing revenge on Henry for putting him through this.