Chef Brockett stops by singing I'm a Chef. He and Mister Rogers go to the kitchen were Chef Brockett makes two snowmen -- one out of ice cream and another out of cupcake dough. The one made of dough is for Donkey Hodie who is breaking ground at the site of his new windmill.
In the Neighborhood of Make-Believe, everyone is preparing for the groundbreaking. Lady Aberlin stops by the tree where she practices a song for the celebration -- a "Neighborhood" version of This Land is Your Land. Henrietta slows things down a bit by singing a quiet and peaceful song before Chef Brockett stops by with the "cupcake dough man."
Behind the castle, everyone gathers for the ceremony where King Friday delivers a speech and presents Donkey Hodie with a shovel to use in breaking ground for his new windmill. Donkey Hodie graciously accepts the shovel and the royal land provided by King Friday.
Back at the house, Mister Rogers explains what happens at a groundbreaking ceremony and talks about buildings being erected. He cleans up the kitchen as he sings You're Growing. Chef Brockett returns from the Neighborhood of Make-Believe to collect his things and sings Tomorrow with Mister Rogers as they conclude for the day.
For details and more screenshots from Episode 0021 of Mister Rogers' Neighborhood, visit the Neighborhood Archive.