Mister Rogers plays a game in which a number of assorted items must be fit into an appropriate case. Betty Aberlin tells Mister Rogers that Mabel Mercer will be visiting. In the Neighborhood of Make-Believe, King Friday and Queen Sara ask Handyman Negri to play on his guitar while they wait for Mabel Mercer to arrive with Lady Aberlin. Dr. Bill Platypus begins to play a selection on the bagpipes. The king tells him he must stop. Mabel Mercer has given Lady Aberlin a costume changer. When the two pieces are fit together, her costume will change. After Miss Mercer arrives, she sings alone and then invites the assembly to sing with her. The King declares it “Mabel Mercer Day.”
Mister Rogers is a guitar-sitter today. He is keeping a friend’s guitar while she moves. He heats up some soup and puts it in a thermos for her. When Carol Saunders comes by to pick up her guitar, she plays and sings. Mister Rogers gives her the soup. In the Neighborhood of Make-Believe, King Friday is complaining about the noise Robert Troll makes while he plays. Elsie Jean tells Robert Troll to entertain himself. He begins turning knobs at Corney’s factory. Corney says this is dangerous. Robert Troll must find something else to do. Dr. Bill invites him to go along to Someplace Else. Donkey Hodie is complaining that he is lonely. Someplace Else is too quiet. He is delighted to see Robert Troll and Dr. Bill.
Mister Rogers has on overalls. He mixes cement to make a new step for his porch. In the Neighborhood of Make-Believe, Dr. Bill Marchl is looking for Robert Troll because Queen Sara has asked him to talk to the troll. Robert Troll is at Someplace Else talking to Donkey Hodie. Robert Troll would like to live at Lady Elaine’s campsite, but doesn’t know what to do about it. Dr. Marchl suggests he ask Lady Elaine. Robert Troll is afraid, but with Dr. Marchl’s and Donkey Hodie’s support, he asks her. She is delighted because she is so busy with the museum she doesn’t have time for the campsite. Robert Troll offers to take care of the campsite and to help her out at the museum.
Mister Rogers measures the cement step with a ruler. He shows the new step to Officer Clemmons who is taking a building permit to the Neighborhood of Make-Believe. In the Neighborhood of Make-Believe, Officer Clemmons doesn’t know who needs the building permit, so he must ask. Daniel explains why his clock has no hands. Lady Aberlin tells Officer Clemmons that they are building in Someplace Else. The building permit is for a community center. This will give the neighbors a place for noise, so that they won’t bother King Friday. Back with Mister Rogers, he explains that noise often bothers adults, so children must find someplace else for their noisy play.
Mister Rogers has several pots of different blooming plants including orchids, tulips, and daffodils. The plants have grown from tiny seeds, just as children grow. A film is shown of children making paper flowers. In the Neighborhood of Make-Believe, King Friday wonders why it is so quiet. Queen Sara explains that everyone is at Someplace Else. Handyman Negri tells them of the community center being built for noisy play and invites them to see it. The king won’t go without a printed invitation, which X then prints. The king and queen present a formal portrait and some flowers to the community center.