In the 19th century, on a Maryland plantation, a courageous and resilient young African American woman named Araminta "Minty" Ross endures the brutality of slavery. She dreams of liberating herself and her loved ones from the shackles of slavery, emboldened by her indomitable spirit and the faith instilled in her from childhood. Her life takes a dramatic turn when she learns that she is to be sold and separated from her family. Fearing a life of even greater hardship and determined to claim her freedom, she decides to escape. Her perilous journey of over a hundred miles on foot is fraught with danger, as she navigates through the treacherous landscapes of the antebellum South, pursued by relentless slave catchers.

After miraculously reaching the free state of Pennsylvania, she assumes a new name, Harriet Tubman, and starts a new chapter in her life as a free woman. However, her own freedom is not enough for Harriet; she is driven by an unyielding resolve to rescue her family and many others from the bondage of slavery. She becomes involved with the Underground Railroad, a clandestine network of safe houses and abolitionist allies, dedicated to aiding enslaved people to escape to freedom. Demonstrating extraordinary courage and strategic acumen, Harriet embarks on numerous dangerous missions back into the South, becoming a legendary conductor on the Railroad and an iconic symbol of the struggle for liberation.