For decades, the Hollander Estates winery has been the premier destination for lavish parties and romantic day trips on the North Fork of Long Island. But behind the lush vineyards and majestic estate house, the Hollander family fortunes have suffered and the threat of a sale brings old wounds to the surface. For matriarch Vivian, she fears that this summer season could be their last—and that selling their winery to strangers could expose a dark secret she's harbored for decades. Meanwhile, her daughter, Leah, who was turned away from the business years ago, finds her marriage at a crossroads and returns home for a sorely needed escape. And granddaughter Sadie, grappling with a crisis of her own, runs to the vineyard looking for inspiration.