Middle-aged widow Beatrice Hunsdorfer and her daughters Ruth and Matilda are struggling to survive in a society they barely understand. Beatrice dreams of opening an elegant tea room but does not have the wherewithal to achieve her lofty goal. Epileptic Ruth is a rebellious adolescent, while shy but highly intelligent and idealistic Matilda seeks solace in her pets and school projects, including one designed to show how small amounts of radium affect marigolds.
Tom and Mae Garvey are a Tennessee farming couple battling violent floods to save their land. In addition to natural disasters, the Garveys fight to stop a selfish land developer and a local corporation from foreclosing on their farm. While Mae stays at home to care for their children and tend to the crops, Tom finds work as a scab at a steel mill to preserve his family's property.
When a rebellious teen embarks on a solo summer journey to connect with her roots, she finds herself in a new world, geared up for the ride of her life, and discovers she had the drive in her all along.