Underground Railroad: The Secret History

Retracing the steps of freedom seekers escaping on the Underground Railroad, archaeologists use high tech to explore a Florida fort that was nearly erased from history.

Archaeologists unearth the lost abolitionist town of Quindaro, Kansas.

Experts uncover a Freedom Seeker community in the marshlands of Virginia.

Archaeologists search for the wreck of the USS Planter, a Civil War vessel.