"Daisy is a girl coming of age in L.A. in the late sixties, sneaking into clubs on the Sunset Strip, sleeping with rock stars, and dreaming of singing at the Whisky a Go-Go. The sex and drugs are thrilling, but it's the rock and roll she loves most. By the time she's twenty, her voice is getting noticed, and she has the kind of heedless beauty that makes people do crazy things. Another band getting noticed is The Six, led by the brooding Billy Dunne....

Greg Heffley is finding out that the road to fame and glory comes with some hard knocks. When he decides to tag along with his brother Rodrick's band, Löded Diper, Greg doesn't realize what he's getting into. But he soon learns that late nights, unpaid gigs, fighting between band members, and money troubles are all part of the rock 'n' roll lifestyle. Can Greg help Löded Diper become the legends they think they are? Or will too much time with Rodrick's...

With the success of their all-girl teenage rock band, Joan Jett and Cherie Currie's friendship begins to unwind after Currie decides to leave the group.