When Noah invites Penny on his first-ever European tour, she can't wait to spend the summer with her rock-god-tastic boyfriend.

But, between Noah's jam-packed schedule, less-than-welcoming band mates, and threatening messages from jealous fans, Penny wonders whether she's really cut out for life on tour. She can't help but miss her family, her best friend Elliot, and her blog, "Girl Online."

Can Penny learn to balance life and love on the road, or will she lose everything in pursuit of the perfect summer?