A few years after losing her beloved husband, Alison is doing something she never thought she would do again: getting married. While placing the finishing touches on her summer nuptials, Alison is anxious to introduce her fiancé, David, to her grown daughters: Felicity, a worried married mother of two, and Jane, also married but focused on her career. The sisters have a somewhat distant relationship and Alison hopes that the wedding and the weeks leading up to the ceremony will give the siblings a chance to reconnect, as well as meet and get to know David’s grown children.

As the summer progresses, it is anything but smooth sailing. Felicity stumbles upon a terrible secret that could shatter her carefully cultivated world. Jane finds herself under the spell of her soon-to-be stepbrother, Ethan, who is as charming as he is mysterious. And even Alison is surprised (and slightly alarmed) by her new blended family. Revelations, intrigue, resentments—as the Big Day approaches, will the promise of bliss be a bust? Against the gorgeous backdrop of the sunswept island of Nantucket, Nancy Thayer sets the stage for a walk down the aisle no one will ever forget.