In the early morning shadows, Abigail finds runaway slaves Cora and Isaac hiding in a dark corner of her barn. Though shocked at this discovery, Abigail is soon drawn into her family's closely guarded secret?their farm is a safe haven for runaway slaves on the Underground Railroad. The farm may not be a safe place for long, however, as Isaac and Cora have barely escaped with their lives. And they are still being pursued. Racing against time and a notorious slave catcher, can Abigail help gain freedom for Cora?