Miranda Waters has always loved Seashell Island -- while her brother and sister escaped it as soon as they were old enough. So when Miranda is left in charge of her parents' Lighthouse B&B for the summer, the last thing she expects is her wayward siblings showing up at the door. It's been years since they've all lived under the same roof. Now, they're facing a whole summer together - and a crisis for the B&B. With the Lighthouse filled with people - including two imaginative nieces, a four piece folk-rock band, and an unruly llama - and a lifetime of secrets between them, can the Waters siblings work together to save their home before it's too late?