Cameron Ryker lives with her dad in Sydney, working a part time job cleaning houses to buy parts for her 1960 Roadster convertible; all while trying to get through high school. When she notices a flyer for auditions for a keyboard player to go on tour with a band called, 5 Seconds of Summer, she sees it as a chance to get out of her family's expectations for her to go to college, and to make something of her love for music. But there's one problem, it's for boys only. But then, when did something like that ever stop her before?