It’s the summer after your high school graduation in 1963, and you’re going to spend some time with your girlfriends before you all go your separate ways. You’re supposed to go to Fort Sumter, but you don’t feel like “touring goddamn colonial homes.” Instead you want to go to Myrtle Beach, meet boys and go to wild parties and dance. And maybe, just maybe, you’ll drink moonshine, meet the dreamy rock ‘n’ roll star Jimmy Valentine and win a shag dance competition while you’re at it.