Moses is a twelve-year-old boy, living on a Virginia tobacco plantation in the 1850s. He knows what slavery means. Massa owns him. A shy, frightened boy, Moses knows that he and his family are nothing more than property - the same as a mule or a wagon. After the unexpected death of his Papa, a shocking surprise changes Moses's life forever. His fears turn into action as he leads Addie, his sister and their Mama on an exhausting and dangerous journey to freedom on the Underground Railroad.