Liz Hart ran away from Harmony Heights at 17 to avoid the high-society marriage her parents had planned for her. Now 34, Liz is a single mother to a 15-year-old boy and is back to living in the small town in upper New York state she once tried to escape. Working hard to make a good life for them without relying on her rich father, whose assistance always comes with strings attached, Liz finds herself on uncertain footing when her son Augie starts acting sketchy and aggressive after his 15th birthday party, spent overnight with his friends at a cabin in the woods. The town's upcoming tricentennial celebration brings more than tourists, though, as a couple of strange men start circling her and Augie for reasons that Liz assumes are bad news. Augie and company may have gotten into trouble that they are all too young to handle and Liz attempts to puzzle it out while one of the men, Brandon, tries to date her and the other, Hardey, stalks Augie. Drugs? Or worse? Desperate to save her son, Liz sets out on a journey that will split her world wide open and reveal the secrets of Harmony Heights she never suspected exist.