During their first summer apart, four teenage girls, best friends since earliest childhood, stay in touch through a shared pair of secondhand jeans that magically adapts to each of their figures and affects their attitudes to their different summer experiences.
On alternating weeks, Sasha and Ray vacation in the beach house their parents refused to give up after their divorce, but they never meet until one summer when their lives and those of their siblings intersect in ways none of them could have imagined.