The Littleton Games have arrived, and everyone is stoked - especially Mom and Dad who have been preparing to celebrate the way they do every time the games comes to town: by participating in the Littleton Games Amateur Roller Dancing Competition. But when Polly discovers roller dancing is being cut from the Games, she worries the broken tradition might be catastrophic for Mom and Dad's relationship - and sets off to save the sport. Polly, Shani and Pierce team up to ensure that roller dancing remains in the games. But when their attempts fail, Shani's song is the only thing that can save the games.