The little buses become excited when they hear about a new friend joining them at the garage. Hana says the new friend's name is Peanut. Cito asks Tayo to go and greet the new bus. As Tayo wonders how Peanut would look like, he guesses that Peanut would be a curvy shape like peanut! Tayo gladly goes to pick up Peanut, but Tayo arrives late and Tayo and Peanut miss each other.
In the meantime, Peanut wonders around the city following butterflies, flowers, and musicians and making it harder for Tayo to find him. Will Peanut and Tayo actually meet and drive back to garage?