Terry Nelson, an eighteen-year-old high school senior looks forward to going to college to study Music Theory and Composition. He’s also written excellent classic rock songs for his older sister’s all-girl rock band. He spends his spring vacation practicing with the Wildcats and the band sounds so good with Terry adding piano, guitar, and vocals that everyone is excited.

At the last minute, Terry’s sister and mom decide to disguise him as the fifth member of the band and dress him up as a girl for a weekend gig. Terry has a great time playing on stage in front of the sold-out crowd, but things backfire.

Suddenly, Terry finds himself trying to fit into a world of high heels and rock ’n’ roll.