When Buck Miller, the lead singer of Jems and Jamz loses her girlfriend, Olive and lead guitarist to a rival band, her life takes a drastic turn. Just when everything seems like it is too much to handle, her band manager hires a new woman, Ziggy Johnson, to take Olive's place. Ziggy is charming and challenges Buck with her overall talent, creating tension between the two. Buck does her best to get along with the other woman, but when the Ziggy threatens her spot on vocals, tempers flare.