Willa Havisham is Cape Cod's summer girl, and this summer brings new things for everyone. Most notably, a long-lost brother Willa never knew existed. While Willa's mother, the famous wedding planner, is not so excited about this discovery (it's Willa's father's son), Willa wants to know everything there is to know about this new boy, including why it took him so long to find her. Between family, friends, and Willa's new secret project, it's going to be quite a summer!