In the story's universe, there's a network of secret tracks, tunnels, routes and safe houses that run throughout the Southern states and can take runaways seeking freedom to the north. Cora and another slave named Caesar take the train to South Carolina, where they discover a sinister plot to use black people as experiments, all while running from slavecatchers and mobs. Amazon doesn't have a launch date for the limited series yet, but it's expected to premiere sometime in 2019 on Prime Video.

Amazon Studios head Jennifer Salke said in a statement: