After seeing a parade poster, Uma wants to be in a parade. With home-made costumes and floats, she leads Oobi and Kako in their very own parade. They march around their block singing with all the neighbors watching. — NickJr.com (source)
Oobi, Uma, Kako, and Grampu are admiring a poster in the kitchen. Oobi greets the viewers and explains that the poster is for a parade. Uma asks Grampu what a parade is, and he tells her that it's a celebration with a marching band, a float, and a majorette. Oobi and Kako demonstrate how a marching band walks across a street, and they invite the viewers to march along with them.
Uma gets the idea to put on her own parade. She brings Oobi and Kako to a table, where she's set out a drum, a bulb horn, and a set of sleigh bells. She asks Kako to play one of the instruments in her parade, since it needs to have a band. Kako agrees, but he likes all of the instruments and can't decide on one. He chooses to be a "one-man band" and use all three instruments.
Next, Uma asks Oobi to wear a float costume in her parade. He tries wearing a bunch of grapes as a float costume, but it doesn't work. Uma finds a pink bunny slipper, which Oobi refuses to wear, since it's so embarrassing. Uma pulls it onto him anyway and makes him walk around in it. She tells him that it's a good fit and asks him to practice marching with Kako. Kako snickers at Oobi's float, and he angrily and sarcastically tells him to keep laughing, calling him "music boy", which gets Kako just as angry. Uma tells them to play nice and goes to find a majorette outfit.
While Uma finds her costume, an interview segment plays. It involves Grampu asking kids if they've ever watched a parade. The next scene shows Uma with her majorette outfit and a baton. Oobi and Kako are impressed, and Kako stares at her back until Uma tells him: "Stare, don't." She tells Grampu that her parade is ready, and he suggests performing outside.
Uma likes this idea and leads the boys out the front door. A few neighbors, like Angus and Mrs. Johnson, watch as the parade begins. The kids sing the "Parade March" song as they perform. Grampu encourages the viewers to march and cheer along with them. When the parade ends, Oobi waves "goodbye" to the viewers in his float costume.