Rogers takes a Polaroid picture of his fish tank for friends. As he waits for the picture to develop, Rogers draws a fish on a piece of paper. He cuts out the fish and tapes it to a stick (upside-down). Rogers is about to show pictures of pets when Bob Trow calls. He asks Rogers to take care of his dog while he is away later in the week. Rogers shows the pictures of pets dressed up for a pet show.
In the NOM, Lady Aberlin learns that Ana wants a pet for her birthday. King Friday hears the news from Lady Aberlin and Elsie Jean. He produces Troglodytes aedon and asks Lady Aberlin to sing to it. Elsie Jean tells Friday that Ana wants a live pet. She also says Lady Elaine will show a variety of animal pictures to Ana and her friends. In one concourse, Lady Elaine shows pictures of a bug, a snail, a whale, a monkey, and an elephant. Ana says she does not want any of the animals pictured. Lady Aberlin and Elsie Jean stand outside the Museum as the others emerge. They discuss the kind of pet they would like.
Back at the television house, Rogers turns the Troglodytes aedon song into an ode to his paper fish, which he calls Sally Margaret McFarland. He thinks of ways children play with their pets (film insert). Bob Trow brings his dog, Barney, to the porch. Rogers gets permission to pet Barney. Trow feels Rogers is responsible to take care of Barney overnight. Rogers explains the meaning of the word "responsibility." He calls Joanne to ensure that it will be okay to have Barney at their house for one night.
Songs: Won't You Be My Neighbor?, Everybody's Fancy, Troglodytes Aedon, I'm Angry, Good Feeling.