Eighteen year old Grace and sixteen year old Emmeline Callahan are two sisters living Huntington Coves, Rhode Island.
They've spent every summer of their lives in this small beach town and went from building sandcastles to collecting seashells, to going to late night bonfire parties.For Grace, she's fallen in love too many times and know heartbreak better than anyone. While Emmeline is the dreamer who fell in love with the boy next door but can't get him to like her back.
So on a starry night the two girls go camping out on the beach. Something they haven't done since little girls, and they go back to a time before heartbreak, summer flings,and disappointment. Back to the summer before boys.