![Underground Railroad: The Secret History](https://image.tmdb.org/t/p/w342/gc6zrMcozzLoIn0WLqMaz54O3vu.jpg)
1 Season
4 Episode
Underground Railroad: The Secret History
Archaeologists and historians use cutting-edge technology to investigate and explore some of the biggest mysteries surrounding the Underground Railroad, a secret network that helped enslaved African Americans escape to freedom.
- Year: 2022
- Country: Canada, United States of America
- Genre: Documentary
- Studio: Science
- Keyword:
- Director:
- Cast: Clark Johnson