Ronnie's (Miley Cyrus) and her younger brother, Jonah's, parents are divorced. They live with their mother until this summer when they are sent to live with their father (Greg Kinnear) in a small town on the beach. Ronnie resents her father and has no intention of being friendly or even talking to him for the summer. But after meeting a handsome guy and beginning to fall in love, Ronnie starts rediscovering her love for music, something she shares with her father. Reconnecting with music revives a kinship with her father which proves to be the most important relationship she may ever experience.