On Valentine's Day a powerful nor'easter destroyed the small town of Cliff Cove, Maine, leaving a cloud of sadness over the community as they mourn two fishermen lost at sea. Weeks later, ten-year-old Gale and her friend Celia have a mystery to solve when mystical heart shaped stones begin to appear all around town, followed by unexplained magical events. Despite everyone's doubts, they are convinced that the heart stones are leaving some sort of clues. The determined duo combines their keen detective skills with their belief in the heart stones' mysterious power and begin to piece together the case. Can they solve the mystery and heal their broken community?.