When Jayylen's grandfather, Paw Paw Jimmy, begins preparing for a big Juneteenth celebration, Jayylen has a lot of questions. Most importantly, what is Juneteenth? His mother and Paw Paw Jimmy explain that the holiday marks the anniversary of when enslaved African Americans found out that they were free. Paw Paw Jimmy plays some zydeco for him, which is the type of music they will dance to at the celebration. Jayylen practices every day so that he will be able to play the frottoir (a percussion instrument similar to a washboard) for everyone. But will he be able to pull off an even bigger surprise for the day?