This episode investigates African resistance to slavery in Africa and the “Underground Railroad.” The Diving With a Purpose divers embark on an investigation to positively identify a preserved wreck that ferried African Americans to freedom.

Cast: Jes Gislason, Afua Hirsch, Samuel L. Jackson, Simcha Jacobovici, Kinga Philipps, Rachel Sophia-Anthony, Alannah Vellacott, Joshua Williams, Kramer Wimberley