Thomas Miller, a divorced father, gets a chance to spend the summer with his teenage daughter, Olivia and his young son, Jason. Olivia resents her father and has no intention of being friendly or even talking to him for the summer. But after meeting, Harry, they begin to fall in love. Harry helps Olivia, rediscovering her love for music, something she shares with her father. Reconnecting with music revives a kinship with her father and she summer that she didn't want, turns into a summer she will never forget