It's 1863. Harriet Tubman is facing one of the biggest--and most dangerous-- challenges of her life. She has survived her master's lash, escaped from slavery, and risked her life countless times to lead runaway slaves to freedom along the Underground Railroad. Now she has a new role--that of Union spy! The outcome of a secret night raid deep into Confederate territory depends on the accuracy of the intelligence she and other black spies have gathered...