Fran's waved goodbye to the force and hello to her pension. But who is she without her job? She decides to get away from it all in Llanbryn, an idyllic seaside village in Wales. It beats feeling sorry for herself and watching Homes Under the Hammer all day. Fran's soon taken under the wing of the Sea Sisters, a group of inspirational women of all ages and sizes who swim in the ocean. They challenge her to move on from the past and face her life-long fear of the sea. And the strapping Wyn catches her eye. He appears to be the local troublemaker, but perhaps Fran's got the wrong end of the stick . . . Fran feels more alive than she has in years, but Wyn has his own emotional scars. Maybe they can help each other?