The Taylor sisters spent every summer at their family's lake house, but as they grew up, they also grew apart. Now, in honor of their late mother's wishes, they reunite on Evening Island, each hoping to find the best part of themselves they'd left behind.

Kim is just weeks away from what should be her dream wedding, but as the big day draws closer, her doubts only grow stronger. Some time away may be just the thing she needs to help clear her head...or change her heart.

Heather has always been the reliable sister, but a recent divorce has made everything feel uncertain. When a second chance with an old flame comes along, she must decide if a summer love can last a lifetime.

Andrea's career is her top priority, even if her heart is no longer in it. When her boss suggests a vacation, a couple of weeks on the island leads to the inspiration she was searching for, and not just for work...

Thanks to the beauty of the island and the memories they share, the sisters come together, search their hearts, and discover what the future holds for each of them at summer's end.