Alice is turning 10 and excited to come back to the Florida seashore resort where she always spends her birthday week. But things have changed: Half of the usual vacationers — people Alice thinks of as family — are not coming this year. And, Alice is not sure what to make of the new renters. When her favorite “aunt” Kate turns up with a boyfriend and his 6 year-old daughter, things get even more complicated and difficult, and Alice feels lost. With the support of her parents and other regular vacationers, Alice starts searching for something even more valuable than the shells she hunts for each year — the search for her own self.