Jasmine, Maggie, Becca, and Scarlet love jamming together in Jasmine's basement. Maggie bangs on the drums, Becca strums her guitar, Jasmine plunks the keys of her keyboard, and Scarlet wails into her hairbrush mic. Even though they may not have the best equipment, or an audience, they have fun making music to their own beat. But when Jasmine's brother tells her about an upcoming Battle of the Bands competition, Jasmine thinks this could be their chance to prove they're a real band. Now she just has to convince the other girls. . . .